The influence of annealing conditions, blending and chemical modification on the fracture behaviors of the co-polypropylene (PP) sheets at low cross-head speed was investigated by means of the essential work of fracture (EWF) method.是什么意思_The influence of annealing conditions, blending and chemical modification on the fracture behaviors of the co-polypropylene (PP) sheets at low cross-head speed was investigated by means of the essential work of fracture (EWF) method.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句