以下为句子列表：
英文: A clamp or vise that holds a machine part in place or controls its movement or that holds two such parts together.
中文: 钳，夹夹子或老虎钳，用来固定机器部件到位、或控制其运动或把两个该种机件连接起来
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英文: This machine part needs surface finishing.
中文: 这个机械零件需要精密加工。
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