The laser - cladding techique for welding of and large workpieces is reported.本文报导了激光熔敷法焊接异型件的新技术.Cooling affects the machining precision of workpieces and the tool - life greatly.冷却问题的研究是非常重要的,它对工件的加工质量和刀具寿命有很大影响.Adopti...
Polly, bewildered and embarrassed, dropped her head and scuffed her feet.波莉既困惑又尴尬，低下头拖着脚走开了。I'm a very girlie person while Polly is one of the lads.我女孩子气十足而波莉却像个小男孩。Polly gave her a crooked grin.波莉向她不自然地咧嘴一笑。...
The results confirmed his hypothesis on the use of modal verbs.结果证实了他的关于情态动词用法的假设.Work will now begin to test the hypothesis in rats...现在将开始在老鼠身上做实验以验证该假设。We therefore reject our hypothesis that these 4 constructs would ...