粗煤气系统内衬要承受高温煤气流的冲刷和化学侵蚀。
The lining of the rude gas system shall withstand the erosion and corrosion by the high-temperature gas flow.
钢铁企业煤气系统结构非常复杂，煤气调度涉及的变量众多。
The architecture of the gas system is very complicated in iron and steel enterprises and the gas scheduling involves a lot of variables.
另外，用直接蒸汽加热接触器以脱出酸性气体，并将酸性气体引入煤气系统，对于减缓腐蚀十分必要。
In addition, for corrosion reducing and retarding, it is necessary to use steam directly to heat contactor to remove acidic vapor and to lead acidic vapor into gas system.
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