... duct fittings 风管接头,风管配件 ductile 可延展的,可锻的,柔软有;韧性的 ductile-brittle transition temperature 延性-脆性转变温度 ...
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我们要学习鲁迅先生韧性的战斗精神。
由此产生的钢似乎达到了强度和韧性的结合,这与合金含量非常高因而非常昂贵的现代钢相当。
The resulting steel appears to achieve a combination of strength and toughness that is comparable to that of modern steels that are very rich in alloy content and, therefore, very expensive.
这种一定韧性的需要是一个问题么?
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