mechanical advantage

基本解釋

For any machine whose input and output forces are known, its mechanical advantage can be calculated.
對(duì)於任何機(jī)器來(lái)說(shuō)，如果知其輸入力和輸出力，就能求出其機(jī)械傚益。（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(jī)器的輸入和輸出功率已知，他的機(jī)械傚率就可以計(jì)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(shuō)，短跑選手犧牲了長(zhǎng)杠桿所帶來(lái)的力學(xué)優(yōu)勢(shì)從而獲得了更爲(wèi)迅猛的起跑速度。

That provides mechanical advantage, and thus more force.
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