Firstly, analyse the basic principle and processcharacteristic of Vacuum Freecing-dry.
分析了真空冷冻干燥基本原理与过程特点。
2
The processcharacteristic is that the first draw occurs in a steam box and the second draw between the succeeding drawing roller and setting roller.
其后加工特点是:一级拉伸发生在蒸气浴槽内,二级拉伸发生在第二拉伸辊与定型辊之间。
3
In the second part, process condition, operational gist and processcharacteristic of container airless spraying, container films drying and curing were discussed.