How are large wind turbines built?

First build a temporary road and use vehicles to transport the required materials to the location, starting from building the foundation to installing the fan blades, testing and operation. The most important thing is to use a special crane when installing the fan, from bottom to top, level by level, and finally install the main body of the fan and finally the fan blades. Once everything was finished, some roads were revegetated, while others were preserved.