The sails are mounted at an angle or are given a slight twist, so that the force of wind against them has two components, one of which, in the plane of the sails, causes rotation.

风叶有一个安装角或略有扭曲，因此可将吹来的风分解为两个分力，其中在风叶平面上的分力使风车旋转。

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Because the leaves on a tree branch all grow at the same end of the branch, Eloy modeled the force of wind blowing on a tree's leaves as a force pressing on the unanchored end of a cantilevered beam.

由于同一根树枝上的叶子都长在同一侧，因此在埃洛伊的模型中，作用于树叶的风力都施加在这一悬臂结构的非固定端。

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Do you fear the force of the wind?

你是否害怕风的力量？

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For the Democrats to retake the House, they must either reverse this polarity in the South or they must ride a wind of similar force in other parts of the country.

NPR: What Would It Take To Flip the House?

In some areas where the constraints are especially acute like Oregon and Washington State, the lack of spare transmission capacity could force wind farms that have already been built to shut down on a rolling basis in the near future.

FORBES: Transmission Bottlenecks Bad News for Renewable Energy

Police and the Highways Agency are continuing to monitor wind speeds, which could force the closure of the Sheppey Crossing in the north of the county.

BBC: Kent snow and ice causes disruption