... lever 杠杆，杆 leverage 杠杆机构；杠杆作用，力臂比；杠杆臂长比；扭转力矩 lever-arm recording flowmeter 杠杆记录式流量计 ...
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这个模拟实验显示：尽管这样的结构造成了力学上的缺陷，但事实上短跑运动员短足跟所提供的短力臂比非短跑运动员的长力臂能提供更大的力量。
The simulation revealed that despite providing a mechanical disadvantage, the short lever arm of a sprinter's heel actually produced more force than the longer lever arm of a non-sprinter.
真21比气动调节继电器信号室力臂，即输出的压力信号的压力比是无限可调。
The Model 21 Adjustable Ratio pneumatic relay has a signal chamber lever arm, whereby the ratio of output pressure to signal pressure is infinitely adjustable.
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