A simple device, such as a lever, a pulley, or an inclined plane, that alters the magnitude or direction, or both, of an applied force; a simple machine.
机械装置一个简单装置，如杠杆、滑轮或斜面刨，可以改变作用力的大小或方向或同时改变；简单机械装置。
2
A manually controlled lever projecting from the switch permits the driver to signal the direction in which he wants to turn.
从开关上突出的一个用手控制的杠杆使驾驶员能根据所转的方向显示转向信号。
3
In the design of bending die, moving direction of working parts of die is forced by the mechanisms, such as wedge-slide, lever, rack gearing etc, so as to realize bending forming.