Polyvinyl alcohol(PVA)composite membranes were prepared by means of the solvent complete evaporation.
用溶剂完全蒸发法制备了PVA复合膜。
A treatment by pentosanase could reduce greatly the viscosity and make the evaporation more complete.
为使蒸发进行得更彻底，可以用戊聚糖酶处理以降低粘度。
XZT complete sets of equipment degassing cycle evaporation evaporation process is based on specifications of materials designed for automatic control system.
XZT循环蒸发脱气成套设备是根据物料蒸发的工艺规范要求设计的自动控制系统。
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