作用力

• acting force
• working force
• applied force
• effort
• agent
• apply force
• action force

参考释义

作用力 [zuò yòng lì]

• -
• 短语
  作用力中心 centre of effort

例句

1. 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
   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.