Definition

Examples

• 轮轴是简单机械的一种。
  lún zhóu shì jiǎndān jīxiè de yì zhǒng.
  The wheel and axle is a type of simple machine.
• 自行车的轮轴需要定期上油。
  Zìxíngchē de lún zhóu xūyào dìngqī shàng yóu.
  The wheel axle of a bicycle needs regular oiling.
• 这个机器用了轮轴原理来省力。
  Zhège jīqì yòng le lún zhóu yuánlǐ lái shěng lì.
  This machine uses the wheel-and-axle principle to save effort.