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单词 mandrel
释义 mandrel/ˈmændr(ə)l/n. 1a a shaft in a lathe to which work is fixed while being turned 心轴,紧轴 b a cylindrical rod round which metal or other material is forged or shaped 芯棒 2 Brit. a miner's pick [] (矿工用的)鹤嘴锄,镐 [16th c.: origin unknown]
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