而这在软性薄片PV C膜压延到基布上的工艺工程中，是无法实现的。
Which in soft PVC film calendering the fabric sheet on the process engineering, can not be achieved.
当前制备控释膜的方法主要包括吹塑成型法，压延成型法和流延成型法。
The traditional methods of preparation of controlled release membrane include boasting plastics molding, pressing spread molding and flowing spread molding.
相应的辅机与塑料压延机配套使用，可连续生产聚氯乙烯薄膜、薄片、人造革和拉伸拉幅膜等。
They are coupled with plastics calender for continuously producing PVC file, sheet, leatherette and film biaxial drawing etc.
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