The cause of quality defect of every procedure is got. This dissertation give the technical measure to guarantee the procedure quality and give the numerical simulation solve of the extrusion.
分析了各工序出现质量缺陷的原因，提出了控制产品质量的工艺措施，对挤压变形工艺进行了数值模拟。
参考来源 - 低渣软钎焊条的生产技术研究及质量控制·2,447,543篇论文数据，部分数据来源于NoteExpress
We will refund you if the purchase has any quality defect.
如果所购物品存在质量问题，我们将退款给您。
Wharf surface concrete crack is a common quality defect in wharf construction.
码头面层混凝土龟裂是码头施工中质量通病。
Analyses each reasons caused quality defect of concrete road surface, points out the solved methods.
分析了造成混凝土路面质量缺陷的各种原因，并针对原因提出了具体解决方案。
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