mechanical l advantage机械利益
actual mechanical advantage实际机械利益
MECHANICAL ADVANTAGE OF LEVER杠杆机械效益
westbank mechanical advantage机械利益
ideal l mechanical advantage理想机械利益
pitch mechanical advantage switch俯仰操纵传动比变换器电门
ideal mechanical advantage理想机械利益
mechanical advantage shifter机械效益调节器
mechanical advantage ratio传动比
N(名词) the ratio of the working force exerted by a mechanism to the applied effort 机械效率