这种冲床易于操作.This kind of punch is easily operated.这台冲床能一次冲出四只模子.This punch can strike out four moulds at a time.简要介绍了冲床打 料杆 的调节方法.The adjustment method of press machine stroke of knock - out is briefly introduced....
A glass or quartz tube has tungsten electrodes sealed in each end.两根钨丝电极是封在玻璃管或石英管的两端.She sealed the letter.她把信封上了。The milk was sterilized and sealed in bottles.牛奶经过灭菌处理后被封装在瓶子里。She merely filled the containers, sealed t...
Jane is determined to hold on to her fortune.简决心要守住自己的财产。Firms are now keen to hold on to the people they recruit.各公司现在都急切地想要留住招聘来的员工。They determined to hold on to the last.他们决定坚持到最后....
speak in a halting way说话吞吞吐吐The old woman's halting steps revealed the feebleness of her constitution.老人家蹒跚的脚步显出她体质衰弱.The officer replied in halting German...这位官员用结结巴巴的德语作答。He moderates his assent with the halting a...
But a concerted effort has begun to improve the quality of the urban air.但是各方已经开始共同努力改善城镇空气质量。Another goal is to help manufacturers of antivenom medicines improve their products.另一方面,还致力于帮助那些抗蛇毒血清的生产厂家改善其产品(质量).Objective...
Clouds are formations of condensed water vapour.云是由凝聚的水蒸气构成的.Vapour phase chromatography has rapidly become one of the most successful analytical techniques.气相色谱法已经迅速成为最成功的分析方法之一.All condensers work by removing heat from...