general service pump 通用泵; 通用排水泵; 总用泵..
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general service pump 通用泵; 通用排水泵; 总用泵 bilge pump 舱底污水泵。 .
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fire and general service pump 消防总用泵
general service pump coupling 通用泵联轴器
general reciprocal service pump 杂用水泵
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The choice and application of the general vacuum pump oil are described, a reference is given to the user, service workers, works and sales departments in the article.
介绍常用真空泵油的选择考虑和应用实例，供用户、有关厂商和维修人员参考。
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