The first category brings together actions undertaken or participating in the production of wind energy equipment. Such as Goldwind Technology (002202), Dongfang Electric (600875), Huayi Electric (600290), Xiangdian Electric Co., Ltd. (600416), Changzheng Electric (600112), Silver Star Energy (000862), Shanghai Electric (601727), TBEA (600089).
The second type of inventory is engaged in the production of wind power equipment parts. Such as Great Wall Electric (600192), Tellhow Technology (600590), Huitong Group (000415), Xinmao Technology (000836), Tianqi Shares (002009), Huitong Group (000415), Tianwei Baobian (600550), Lingguang Industry (600629) . , Sinoma Technology (002080), Jiuding New Materials (002201), Fangyuan Support (002147), Tianma Holdings (002122), Ningbo Yunsheng (600366), Zhongke Sanhuan (000970).
The third category of securities undertakes wind energy production projects. Such as offshore petroleum engineering (600583).
The fourth caThe category of stocks operating wind power generation business mainly consists of energy stocks such as Guangzhou Holdings (600098), Jinshan Shares (600396), Jingneng Thermal Power (600578), Huitong Energy (600605), Shen Hua Holdings (600653), Guodian Electric Power (600795), Guangdong Electric Power A (000539), Baoxin Energy (000690), Jiden Electric Co., Ltd.
NO.1
Let a piece of shredded paper fall freely in a windy area, measure the time and horizontal displacement, and you can approximately know the wind speed. aerodynamic force and the influence of shredded paper, fluid equation, so it doesn't have to be very precise, just rough.
NO.2
Stand at the window and spit down below. Remember to spit in a straight line towards the money. Unless your mouth is crooked, you can do it. the pin The location of the fall. Count silently in your estook as long as it took to fall. This is the speed of the wind.