However, because of various reasons, the preparatory process is often a formality.
然而由于种种原因，前置程序往往徒具形式。
The paper analyses the changing regularity of yarn hairiness on preparatory process, determining factors and method of reducing hairiness.
分析了准备工序纱线毛羽变化规律和影响因素，提出减少毛羽的措施。
The paper analyses the changing regularity of yarn hairiness on preparatory process, determining factors and method of reducing hairiness.
分析了准备工序纱线毛羽变化规律和影响因素，提出减少毛羽的措施。
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