The blended chips containing 10 % ~65 % of n - Eicosane were fabricated with n - Eicosane, polyethylene ( PE ) and ethylene - propylene copolymer.以正二十烷 、 聚乙烯和乙丙橡胶等为原料经熔融挤出,制成正二十烷含量10%~65%的共混切粒....
She makes no attempt to stifle a yawn.她忍不住打了个哈欠。It is best to stifle curiosity and leave birds' nests alone.最好能克制住好奇心，不要去碰鸟巢。Gritting my teeth, I did my best to stifle one or two remarks.我咬紧牙关，硬是吞回了几句话。All Villefort...