The return sewage of oil refining using in system of circulating cooling water as supplying water was studied.

对炼油污水作为循环冷却水的补充水回用于循环冷却水系统进行了研究。

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This product is widely used in circulating cooling water, oilfield, paper, and pesticide, cutting oil, leather, printing ink, dyestuffs, and tanning industry.

本品广泛运用于循环冷却水、油田、造纸、农药、切削油、皮革、油墨、梁料、制革等行业。

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These system include filtering system for crude oil entering, filtering and cooling system for hot oil, filtering and cooling water circulating system for reduction gearbox of the drilling motor.

该系统包括原油入口的过滤装置，热油过滤冷却装置和钻井马达变速箱过滤冷却循环装置等三大部分。

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