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simple machine

/ˈsɪmpəl məˈʃiːn/

翻译: 一种改变力的方向或大小的基本机械装置,通常用于省力做功。六种经典简单机械为:杠杆、轮轴、滑轮、斜面、楔子和螺旋。

1 个条目

phrase

/ˈsɪmpəl məˈʃiːn/B1formaltechnical
  • zh一种改变力的方向或大小的基本机械装置,通常用于省力做功。六种经典简单机械为:杠杆、轮轴、滑轮、斜面、楔子和螺旋。

A basic mechanical device that changes the direction or magnitude of a force, typically used to make work easier. The six classical simple machines are the lever, wheel and axle, pulley, inclined plane, wedge, and screw.

  1. B1formal

    A basic mechanical device that changes the direction or magnitude of a force, typically with no moving parts.

    zh简单机械

    • A lever is a simple machine that helps lift heavy objects.
    • The wheel and axle is another example of a simple machine.
    • Students learned about the six types of simple machines in class.