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单词 dead centre
释义

Collins Concise English Dictionary © HarperCollins Publishers::
dead centre n
  1. the exact top (top dead centre) or bottom (bottom dead centre) of the piston stroke in a reciprocating engine or pump
  2. a pointed rod mounted in the tailstock of a lathe to support a workpiece

Also called: dead point
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更新时间:2025/2/22 21:22:29