spare part

柯林斯词典

spare part (spare parts)

• 1. N-COUNT Spare parts are parts that you can buy separately to replace old or broken parts in a piece of equipment. They are usually parts that are designed to be easily removed or fitted. 备用零件

  In the future the machines will need spare parts and maintenance. 这些机器将来会需要备件和维修保养。

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