Impurities gathered in the duct wall affected the cooling effect of coal gas primary cooler.
我厂的煤气初冷器因管壁上结积杂质而影响其冷却作用。
The problems on the operation of the primary cooler with mixed oil are explicated, the method of improvement and practice effect are described.
文中阐述了初冷用混配油操作中存在的问题，介绍了改进方法及实践效果。
The problems on the operation of the primary cooler with mixed oil are explicated, the method of improvement and practice effect are described.
文中阐述了初冷用混配油操作中存在的问题，介绍了改进方法及实践效果。
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