Equipped with compound gearing consisting of 2 pinions and 2 wheels in mesh to increase the mechanical advantage. 装有两个小齿轮和两个轮子啮合在一起的复合齿轮装置,以此提高机械效率。
The mechanical advantage gained by being in a position to use a lever. 通过在某位置运用杠杆来取得机械上的方便。
A simple machine that gives a mechanical advantage when given a fulcrum. 给一个支点能够省力的简单机械。
The crane takes this a little further : one can observe how the winch diameter affects lifting speed and power, and the very useful principle of mechanical advantage gained by the two pulleys. 制作起重机需有更进一步的思考:我们可以观察到转盘直径的大小会如何影响到起重的速度和功率,以及藉由两个滑轮组合可以得到非常有用的机械效益原则。
The tractor, the reaper, the combine, and hundreds of other machines gave farmers the mechanical advantage they had long needed to ease their burdens and make their lands truly profitable. 拖拉机、普通收割机、联合收割机,以及上百种其他不同的机器让农民获得了他们需求已久的机械优势(MA),来减轻他们的负担并使他们的土地真正赢利。