慎重选取制造车辆部件的原料，从而避免了对不可回收物料的使用。
Carefully selected materials reduce the product mix, thus avoiding the use of non-recyclable substances.
重点介绍对用后钢包浇注料的回收工艺及回收物料在高炉铁口炮泥中的应用。
The process of recovery of refractories for ladle and the application of recovery material in blast furnace tap hole clay are introduced emphatically.
介绍了双塔节能尿素工艺装置长期停车方法，对双塔节能尿素工艺装置进行了简介，重点介绍了长停过程中高压物料的回收利用措施。
It gives a brief introduction of dual-tower energy-saving urea process, and emphasizes the recovery and utilization measures of highpressure materials during long-term shutdown.
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