Dynamic flow process of molten polymer was studied in theory to offer a pressure drop input in the dynamic molding process of molten polymer.
从理论上分析了动态熔体流动过程，为研究聚合物熔体的动态充模过程提供流道系统压力降。
This fact does not contact the shaft seal surface, it is the sealing principle of polymer cooled to half molten state and forming the seal.
这种密封实际上并不接触轴的表面，它的密封原理是将聚合物冷却到半熔融状态而形成自密封。
This fact does not contact the shaft seal surface, it is the sealing principle of polymer cooled to half molten state and forming the seal.
这种密封实际上并不接触轴的表面，它的密封原理是将聚合物冷却到半熔融状态而形成自密封。
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