1. Prepare food: Wind can accelerate water loss, such as air-dried meat, air-dried fruit pulp, etc. Xinjiang raisins are a typical dried food.
2. Dry clothes: Wind can accelerate the evaporation of water on clothes, accelerate water loss, and speed up drying of clothes.
3. Wind power generation and irrigation: The wind can rotate the blades of the windmill, and then increase the rotation speed through the increase in speed to prompt the generator to produce electricity. Wind energy is a non-polluting, clean and renewable energy. Ancient people also used windmills to water crops.
4. Help fruit trees and crops bloom and bear fruit: the wind can carry away pollen, fertilizing fruit trees and cropses so that they flower and bear fruit.
5. Electricly Assisted Sailing Ship: In ancient times, ships without electrical systems relied on wind power to move, which greatly reduced the duration of the voyage.
Work appreciation:
"Wind Doll" is a text from lesson 24 of unit 8 of the second grade Chinese language edition year compiled by the Ministry of Human Resources and Education. This text appears in the form of a favorite story for primary school students. Through Feng Wawa's "good intentions do bad things", he vividly presents the benefits and harms that the wind brings to people, allowing students to understand. that “it is not enough to have good wishes, but it also depends on whether it is useful to others.”
Wind is a natural source of energy. A long time ago, humans learned tomaking windmills and using wind power to pump water and process food. The movement of a sailboat is also determined by the wind. Wind plays many roles in daily life, but it also often causes disasters for humans. Storms, typhoons, hurricanes, tornadoes, etc. are all very harmful to humans.
What are the characteristics of wind energy production?
In daily life, at work or in study, it is inevitable that everyone comes into contact with or uses composition. Composition is a very complete and creative verbal activity. Have no idea when it comes to writing an essay? Below are Chun Jing's excellent compositions that I have compiled for your reference. I hope they can help friends in need.
Excellent composition of spring scene 1Spring is here, the grass has sprouted, theThe trees grew fresh leaves, the flowers bloomed and the little swallows all returned from the deep south. Spring is truly intoxicating. .ah!
The little swallows flew again on the branches and continued to sing their beautiful songs. Every time I get up in the morning, I hear them singing their beautiful songs.
In spring, we smell the fragrance of flowers, as if little bees have sprinkled perfume on the flowers, making us feel fresh and fragrant, making people feel that fatigue has disappeared.
The colors of spring are really colorful, the sun is red, the sky is blue and the leaves are greenYes, and the colorful flowers... No wonder poets love to sing about spring and painters like to represent spring. It turns out that spring is the sweetness of all beauty and the sum of all colors. I'm very surprised, why do it. these colorscolorful always choose spring?
In spring, we feel the spring breeze blowing through your ears, just like someone touching your ears, and a warmth flows from your body to your heart. We feel that the spring weather is very warm and comfortable again.
Spring in my hometown is truly a beautiful season.
Excellent composition of spring landscapes 2Spring is the season when all things come back to life, it is a season full of vitality, and it is also my favorite season.
Spring is full of flowers. Look, the pink peach blossoms are very beautiful, just like the long skirts that flutter in the wind when a fairy dances. The oval petals are very soft, as if it were Miss. Chun who stroked my hand. One peach blossom may not be much, but many peach blossoms put together are like several fountains of flowers sprayed in the sun, very beautiful.What a wonderful scene that will be!
In spring, not only are peach blossoms in full bloom, but hyacinths also release their fragrance. You see, hyacinths are made up of many small flowers connected by a stem. they look like... It looks like a little marshmallow, which makes people want to touch it. Not only do hyacinths have many flowers, they come in countless colors. There are red, yellow, blue, purple... If several hyacinths come together, they will be like a big, colorful, eye-catching candy.
The lilac flowers compete in beauty. Its colors are also different, ranging from dark purple, light purple, light pink... Although its flowers are very small, they are only composed of a few small petals and a stamen. It is neither as beautiful as a rose nor as fragrant as a peony, but if clusters of lilac flowers gather together and thebreeze blows, their scent can spread for ten miles.
In spring, the flowers are in full bloom. In this season, we feel infinite vitality and vigorous sunshine.
Chunjing Excellent Composition 3It's time for summer vacation again. At first, I didn't go out to play. My father signed me up for a month of English lessons and transition lessons in Chinese and mathematics. me six months to finish. Every time I return to my hometown.
Early this morning my father took me, my brother, my grandmother, my aunt, my cousin and my cousin home on the way, I looked at the beautiful scenery of both sides of the highway, including not too high mountains. There are spectacular wind turbines, endless green crop fields and high-speed trains...
After a few hours, I finally arrived in my long-lost hometown. My hometown is so beautiful. , with red tilesand white roofs, bunches of grapes, green dates and green vegetables that my grandfather grew at home, including loofah, beans, eggplant and green peppers that had turned red, bright red. . There are also beautiful butterflies and croaking butterflies in my hometown that I have never seen in Jinan. Croaking frogs and magpies with black and white feathers; the innocent blue of my hometown, the white clouds hanging in the sky like cotton candy; the air in my hometown is so fresh, much better than the city air;
Make it at noon During the meal, we said we wanted to eat corn. My father took me and my siblings to the field less than 100 steps from our house to break the ears of corn that I had tried to break. one, but suddenly a big insect appeared and scared me. Jump, dad said don't be afraid, that means the sticks aren't pesticide free and tu can eat them with confidence. After a while, we broke a basket and took it home to cook and eat.
My hometown is so nice, with beautiful wild flowers, delicious fruits, fresh air and calm environment. I love my hometown.
Excellent spring landscape composition 4Spring is beautiful, moving, full of vitality and vitality, and warm.
"It is easy to recognize the east wind, and it is always spring with its colorful colors." The ancients said it well, spring is colorful, flowers bloom everywhere and everything is reborn. No, there are flowers blooming in the community, on campus, and even in the roadside weeds. Red, white, purple...tulips, winter jasmine, and sunflowers are all blooming on the branches, competing for first place, and no one will let anyone go. It's really a treat for them.them and a dizziness to watch.
Spring has returned to earth and the weather has warmed up. This feeling is not as warm as summer, as cool as fall, or as cold as winter, but it has its own unique charm. This feeling is refreshing. It's both amazing and comfortable. I want to stay still for a long time, but I also want to sit and whisper a beautiful poem.
The best thing is the smell of spring. The grass is fragrant, the flowers also give off a charming aroma, and even the soil has a faint fragrance. Gently hold a daffodil and take a sip. The fragrance will stay in your heart for a long time and you will never forget it. I picked up a rose petal that had fallen on the ground and inhaled it gently. It was a little bitter, a little fragrant and had a slight taste that I don't know how to describe. It was refreshing and thought provoking.
The spring rain patters on the ground. The drizzle moistensthe little flowers and grass, and also nourishes my heart, sowing hope in my heart...
Spring is full of vitality. , is a season of endless possibilities.
Excellent composition of spring landscapes 5I heard that the weather will improve recently. Will the rare spring landscapes be as satisfying as expected? Sunny, rainy or both?
It's still cloudy in the morning. Walking around campus in the morning light, looking up at the sky, it looks like a fish's belly is red - revealing a kind of sensual beauty. In front of the teaching building, the leaves are not so green that they glow, but they seem to give me a sense of peace - perhaps this is a gift given to me in early spring, and I accept it with joy.
At noon, the sky gradually cleared, and the dark clouds that had arrived earlier had no choice but to leave with itolere. The sun shone unobstructed on the playing field, as if covered in gold. The slightly scorched wind blew gently through the treetops, making a clear sound, like the whispering of leaves and wind. Damp, messy flower bedsInside, the sun shines through the trees in places, seeming to evaporate the last wisps of moisture.
After lunch, dark clouds slowly gathered at the edge of the sky above the school - it seemed I had the wrong idea, and the rain fell as expected. The gentle and continuous spring rain is the deep feeling of spring. The desire of all things for sunshine has been mercilessly drowned out by the rain, which is getting heavier and heavier. Spring rain is generally short-lived. After the drizzle, what awaits rebirth is a red sun in spring. The sunrise after the rain is more beautiful and cleaner.
Spring rain, dew and sunshine give birth to vitality. Perhaps only after passing through the wind and rain can we welcome the sky.
Excellent spring landscape composition 6Everything is restored and spring is full of joy. Miss Chun arrives quietly with light steps. I woke up from my sleep and wanted to open the window to get some fresh air. As soon as I opened the window, a warm spring breeze blew in my face.
After getting dressed, I looked down and found a scene of spring flowers blooming downstairs: there was a peach tree blooming downstairs, and the flowers of fish opened their smiles as bright as the sun. They kissed like a group of shy little girls. I thought that with such a beautiful spring scene, we should go play at the Taihu Flower Garden. So, I discussed it with my mother, and I said to her: "Let's go to the flower gardenfrom Taihu today to see the scenery!"
"Okay, while it's spring, let's enjoy the spring flowers. . Let’s enjoy the landscape! » Mom readily agreed.
In the afternoon we left. The scenery on the road was also very beautiful, full of life and spring everywhere. There are yellow butterflies dancing in the trees beside the road. After a while, we arrived at our destination: Taihu Flower Garden.
Even before entering the door, the dozens of rows of colorful flowers at the door came to my eyes. The flowers were in clusters and clusters, exuding bursts of fragrance. After entering the gate, there is a huge flower bed in the middle. The flower bed is full of tulips, red like fire and pink like clouds, particularly beautiful.
Excellent spring landscape composition 7April is a good season for flowering flowers. The breakageIt was blowing gently and crystal clear drops of dew fell from the sky, like a broken pearl necklace! These “pearls” rush to fall from the sky. Spring after the rain must also be a beautiful time. Do you want to see it? If you want to see spring after the rain, come with me for a wonderful trip!
Begonia flowers, as small as a kidney bean and as large as a butterfly, rest quietly on the branches. Begonia flowers come in three colors. The first type: red rose, like a noble woman, wearing a red silk dress, beautiful and elegant. The second type: green, like a girl wearing a green gauze skirt, spinning like a butterfly dancing in the sky, longing for freedom. The third type: white, like a shepherdess in a white skirt, happily leading the lamb, kind and pure. Begonia flowers are odorless.
Winter jasmine, shaped like a precious gemstone. LWinter jasmine has only one color: yellow. He is like a messenger in a green cloak, silently guarding his master in his heart.
Children, even though I have only presented two kinds of flowers to you, I believe that they have sowed the meaning of spring in your hearts, allowing them to take root, to sprout, to bear fruit, then to bear the fruit. fruit of love!
Excellent spring landscape composition 8Early in the morning, when I opened the window, it was already raining.
Putting on my clothes, I left the house. At a glance, you can see flowers everywhere in the mountains and plains, colorful and competing with each other. As I walked along the path, the grass waved and smiled at me. The magpies were chirping and flying everywhere, as if spring had arrived and they were busy announcing the good news. Walking towards the little river, the little river sang songsWe are happy, as if it also welcomes the arrival of spring.
At that moment, I heard a burst of soft laughter, that of the children who were laughing and chasing. I kept my steps full, for fear of disturbing them; for fear of disturbing their peace; lest the spring pass away in a flash because of my noise; I don't want spring to leave. The spring scenery is so charming and makes people forget to leave. I closed my eyes, lay on the grass on the hillside, smelling the fragrance of flowers, and couldn't help but relax. Slowly, I fell asleep, enjoying the beauty of spring, enjoying the breath of spring, and enjoying the scene of the resurrection of all things.
I really want to sigh, but I'm afraid of disturbing the tranquility of spring. I could only sigh in my heart: "Ah! Spring is here, and everything is coming back to life!"
Excellent landscape composition printanier 9The grass of the playground, blown by the spring breeze and nourished by the drizzle, looked up childishly. With his little head, he greeted with a smile: "Hello Aunt Chun, hello Sister Chunyu and Chunfeng!" .
At noon, the sun shines on the earth, mapping the school garden community as an extremely beautiful paradise. The luxuriously decorated school science building next door looks like a palace in the sky. Look, pairs of butterflies fly together in the bushes and groups of dragonflies compete in the air like airplane stunts. Listen, "chirp, chirp", who's calling? Oh, it's a group of lively, intelligent birds, singing and competing in high and long jumps onto the big tree where they bid farewell to hibernation and sprout little buds. After school, the students walked around the area and enjoyed the warm sunshine. In front of the teaching buildingt, some students took off their thick clothes and played the game of sandbag toss.
In the evening, the sound of reading on campus, the spring breeze blowing on the face, and the intoxicating fragrance of flowers make people intoxicated. Hundreds of swallows are carefully arranged on the cable lines, as if a war against mosquitoes was underway. The small tree by the roadside contains the gift Chunyu gave him, remembering the time when the sun met during the day and grew with the night fog. The spring breeze caresses the flowers. The flowers were so happy that they danced the sweet “Spring Breeze Song” with an extremely graceful posture. The little eyes twinkling in the sky, as if asking: "Are they having a party? Why don't you invite me?"
Ah! Spring campus landscape, what a magnificent and charming landscape animation!
Excellentyour composition of spring landscapes 10Spring, a song full of green. It was she who woke up the green and made people laugh. She's a great musician.
“The best thing about spring…” I carried ancient poems and got drunk with the wine of the earth. I lay on the green lawn, looked up at the sun, watched the birds fly in the sky. sky, and I imagined what I would be like. Fight like an eagle against the sky thousands of miles away.
Walking along the edge of the pond, the willows are reflected in the lake and the branches sway in the wind. Suddenly, a poem by the ancient poet Gao Ding comes to mind: "The grass grows and the orioles fly." in the February sky, and the willows are intoxicated with the spring smoke." Indeed, the willow on the shore has already become intoxicated with the caress of spring.
Looking at the pond, which is as horizontal as a mirror, it is crystal clear, with microwaves rippling in thehe spring breeze and fish playing carefree in the pond, like in a dream, ah! .landscape painting.
Look, the winter jasmine has also bloomed under spring care. She is not alone. She brings pear and peach blossoms, clusters, strings and pieces, golden, white as snow, The pink race. blooms like spring.
Xiaocao was not to be outdone. He and his siblings grew up under the care of Mother Chun. They shook their heads in the spring breeze, like dancers.
Chun, you are as beautiful as your name.
Wind energy production requires a significant initial investment. The investment per unit kilowatt of wind power generation is much higher than that of thermal power generation and hydropower generation, so the price of grid-connected wind power is also higher than that thermal energy. CHowever, in the current situation of energy shortage, it still has incomparable advantages compared with nuclear energy, hydropower, thermal energy, etc. The technical state and actual exploitation of wind energy show that the cost of building a wind farm is much lower than that of a hydroelectric power plant, thermal power plant or nuclear power plant. Wind power is a clean natural energy, without the environmental pollution problems associated with coal, oil and nuclear power. Wind power generation does not require the coal, oil, and other fuels needed to produce thermal power or the nuclear materials needed by nuclear power plants to produce electricity. There is no consumption other than routine maintenance.
Compared with other methods, the construction period of wind power is generalvery short. The transportation and installation time of a wind turbine does not exceed 3 months. The construction period of a 10,000 kilowatt wind farm is less. more than a year, and the installation of a can A unit is put into production; the installed capacity is flexible and can be large or small according to actual needs, or can be determined according to the amount of funds, making fundraising easier. ; the operation is simple and can be completely unattended; the actual area is small, and the monitoring unit and substation and other buildings only occupy about 1% of the wind farm land, and the remaining sites can still be used for grazing. , fish farming and crop cultivation; the area requirements are small and can be built in hills, seasides, river banks, deserts and other terrain conditions.
In addition, energyWind turbine has the characteristics of diversified power generation methods, which can be operated online or combined with Diesel generators can form complementary systems or operate independently, which provides a realistic possibility of solving the electricity problem in remote areas without electricity. Wind power generation devices can be purchased in any location where the wind is strong and suitable enough to produce electricity. Therefore, the current application of wind power can be considered quite extensive, such as in mountainous areas, islands, isolated areas and camps. , floating islands, construction sites, lighthouses, radio stations, relay stations, etc. Used as a stand-alone power supply or auxiliary power supply for lighting, electrical instruments, electrical appliances, irrigation, communications, air conditioning,heating, etc. These characteristics of wind energy constitute its advantages.
Wind power plays an important role as an auxiliary energy source, but wind turbines still have some shortcomings. First, energy production is unstable, especially the utilization rate of large wind turbines is low, and they are not yet qualified as independent energy sources; second, the safety and reliability of wind turbines are not fully guaranteed; Wind turbines are not enough to compete with fossil fuels in the short term. However, with the increasing human demand for energy and the development of science and technology, the above problems will eventually be solved.
Contemporary science and technology can already use wind energy to produce electricity on a large scale. Although the current production of wind energy represents less than 1% of the productionworld's total electricity, with continued advancements in wind energy technological innovation, it is expected that by 2020, it will be able to supply 10% of global electricity demand and create 1.7 million jobs and reduce more than 10 billion tonnes of carbon dioxide emissions globally.