1·The differences and the reasons of nanofibers prepared by polyethylene glycol oxide solutions with different shear viscosity were also discussed.
随着聚氧化乙烯溶液零剪切粘度的增加，制备的纳米纤维直径逐渐变细而且表面也较平滑。
2·The free polyethylene glycol (PEG) in polyethylene oxide-polypropylene oxide type demulsifiers is separated by extraction, determined by gravimetric analysis and identified by gas chromotography.
本文用分配萃取法测定了AP 型原油破乳剂中的聚乙二醇。