Hard elastic polypropylene is formed by crystallized under strain and annealing.硬弹性聚丙烯是在应变结晶和热结晶两个复合过程中形成的.The suitable recovery strain annealing temperature was 500 ℃.适宜的回复应变退火温度为500℃.To optimize sub - job assignments, ...
挑选的地板材料必须是防水的。The floorcovering you select will need to be impervious to water.“我们的金融信息服务对象是经过挑选的客户，”克鲁克傲慢地说道。"We supply financial information to selected clients," Crook said loftily.各式各样可供挑选的礼品a wide assortment of gift...