COW washing technology is adopting through temporary laid circulatory system and adopting identical clean oil, circulating to wash, to dissolve, reach the purpose of clearing tank.
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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Because of the quick change and unexpected stop of the circulating direction of oil liquid, the machine tool hydraulic system will produce pressure impact.