... spread the speculation that 散播空气说 rotor blades动叶片 drinkables 饮料 ...
4
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...系统(Wind turbine control and safety systems)Fundamentals of wind turbines风轮叶片风轮叶片风轮叶片风轮叶片(Rotor blades)?固定浆距固定浆距固定浆距固定浆距,失速调节pitch stall regulation)失速调节失速调节失速调节(fixed ??变浆调节变浆调节变浆...