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.
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。
2
The tracing polymer as one of the corrosionretarding and scale inhibiting components can indicate the effective concentration of the composite chemical accurately.