高压溶出过程，结疤的产生是不可避免的。
Scab is unavoidable in the process of high-pressure digestion.
铝厂蒸发器管束结疤的清除是其生产中一个难题。
The cleaning of evaporator coil scar is a difficult work of production in the aluminium plant.
本文分析了冷芯盒村脂砂芯条件下缸体铸件内腔结疤的原因。
This paper the cause of the scab of the inside surface of cylinder block on condition that the resin sand cores are made in cold core box.
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