... chemical physics ==> 化学物理学 chemical pipe line ==> 化学管线 chemical plant ==> 化学工厂,化工厂 ...
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Chemical process pipe line design 化工工艺管道设计
When cleaning in chemical medicament, please examine whether the clean pipe line operates normally. In addition, be careful not to mix medicament solution into production filter water.
用化学药剂进行清洗时，请仔细确认清洗管线是否正常工作。另外，请注意不要将药液混入生产过滤水中。
The chemical composition, mechanic property, weldability and corrosion resistance of argon arc welding wire for low carbon steel pipe line are contrasted and analyzed.
对低碳钢管线用的氩弧焊丝的化学成分、机械性能、 可焊性能、 耐腐蚀性能进行对比分析，为合理选用焊丝提供了依据。
To introduce the process of wire drawing process, chemical Cu-plating process and formulation of top grade submerged-arc welding wire for pipe line steel.
介绍管线钢用高等级埋弧焊丝拉丝工艺、化学镀铜工艺及配方。
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