It is mainly because that dislocation slides easily within large twin crystal, which leads to the decrease of strength and the increase in plasticity.
主要是位错在大孪晶中易于移动,从而造成强度下降,塑性提高。
Then, when I was on a sabbatical in Stockholm, I had the opportunity to get involved with the Swedish Twin Registry, a large cohort study in which some researchers were looking at cognition.
然后,当我在斯德哥尔摩休假时,有机会参与了瑞典的双胞胎人员的登记工作,它是一个大型的队列研究项目,其中的一些研究人员正在着眼于认知的问题。
According to NASA, the concepts must incorporate technologies enabling large, twin-aisle passenger aircraft to achieve ambitious environmental goals.
根据NASA的计划,这一概念必需能够融合现有大型客机引擎技术,能实现双引擎客机推动,并能够达到环保效果。
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