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。
This article, having analysed the upward cause of converter bottom, proposes the improvement measure through optimizing equipment parameter and operation method.
针对转炉炉底上涨的原因进行了分析，从优化设备参数、操作等方面提出改进措施。
Objective to analyze the reason and discuss the improvement method to elevate the quality of subtotal gastrectomy and decrease the re-operation rate.
目的分析胃大部切除术后近期再手术的原因，探讨改进方法，以提高胃大部切除术质量，降低再手术率。
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