以下为句子列表:
英文: Fuel oil purifier overhauled and cleaned, gear case oil renewed.
中文: 燃油分油机解体清洁,齿轮箱换油。
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英文: Vertical motion of the carriage is provided by a pulldown gear case coupled by two pinions to racks on the mast.
中文: 滑架的垂直移动是由一个下拉齿轮箱提供的,该下拉齿轮箱则通过两个小齿轮连接到支架上的齿条上。
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