... Ground Operation Expenses 地面勤务费用 Ground Power Unit 地面发电机 Ground proximate warning system GPWS 接近地面警告系统 ...
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风筝通过拖拉系在地面发电机上的绳索发电。
A kite generates power by pulling on a string attached to generators on the ground.
在美国有23个相似的反应堆由11家不同的公司经营，这些反应堆的备用发电机普遍被安置在地面上的碉堡状的掩体之中。
In the U.S., where there are 23 similar reactors operated by 11 different companies, backup generators typically are housed in bunker-like buildings at ground level.
但是，如果此处地面确实是倾斜的，这则意味着风(贴近地面吹向叶面)从一种角度吹向发电机叶片，而非正面对吹。
But if that ground is, indeed, sloping, it means that the wind (which tends to follow the ground when it is close to the surface) hits the blades of the turbines at an Angle instead of face on.
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