mechanical advantage

基本解釋

For any machine whose input and output forces are known, its mechanical advantage can be calculated.
對于任何機器來說，如果知其輸入力和輸出力，就能求出其機械效益。（表示條件）
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For any machine whose input force and output force are known, its mechanical advantage can be calculated.
如果機器的輸入和輸出功率已知，他的機械效率就可以計算。
In other words, sprinters sacrifice the mechanical advantage of a long lever for the benefit of a stronger push-off.
換句話說，短跑選手犧牲了長杠桿所帶來的力學(xué)優(yōu)勢從而獲得了更為迅猛的起跑速度。

That provides mechanical advantage, and thus more force.
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