采油工具
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oil production tools
以上为机器翻译结果，长、整句建议使用 人工翻译 。
Several assembly tools for crankshaft oil plug are designed according to the production requirements, and their operation methods are detailed.
根据生产需要设计几种曲轴油堵装配工具，介绍工具的使用方法。
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