The mechanism of conveying, melting and plasticating of UHMWPE in the extruder were investigated with screw extraction experiment.
研究了UHMWPE在挤出过程中物料输送及熔融塑化机理。
This invention is aimed to solve current screw extraction problem, and empolders structure-changed intramedullary nail to reduce suffering of patients in screw extraction.
本发明的目的为了解决现有的髓内钉断钉取出的问题，开发在结构上改变了的髓内钉，以减少断钉取出时给病人带来的痛苦。
Extraction of black liquor from brown stock may also be effected through screw presses of wash presses.
也可以选用螺旋挤压机或挤压洗浆机从粗浆中抽提黑液。
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