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, ...
At no time did I feel rushed or under pressure.我任何时候都不会觉得仓促或者有压力。I'm rarely under pressure and my co-workers are always nice to me.我很少感受到压力,同事们一直对我很好。They worked hard together, competitively and under pressure.他们在一起...