In addition, the plane of the blades is parallel to the pole, so that a ground-hugging wind hits the blades face on.
此外，叶片平面同塔杆平行，从而使一股贴在地面的风吹打在叶片正面。
The effect is that of a force, perpendicular to the plane, acting on the magnetic pole .
这个效应表明，有一种垂直于圈平面的力作用在磁极上。
In terms of the mode, parameters of sliding mode plane are provided by pole assignment, and a new sliding mode control law using fast output sampling feedback is presented.
在此基础上，用极点配置法给出了滑模切换面参数，设计了输出反馈离散滑模控制器。
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