The design of extrusion complex die on unplasticized PVC pipes is presented.With the die pressure decrease in theory calculated during extursion applied scope of the die is verified in this paper.是什么意思_The design of extrusion complex die on unplasticized PVC pipes is presented.With the die pressure decrease in theory calculated during extursion applied scope of the die is verified in this paper.在线翻译_英语_读音_用法_例句