无芯棒拔制是冷拔钢管生产中应用最广泛的一种生产方法.Non - mandrel drawing is a method widely used in cold drawn pipe production.介绍了一种分析牛角芯棒上热推弯管成形过程的实验解析法.Introduce an experimental analytics axis - thrust tube bending on horn mandrel.提出了小型无缝钢管生产机...
His candidacy has divided the party; while most have scorned him, others have sought to rehabilitate him.他的候选资格使该党出现分化;其中大多数人都嘲弄他，而另外一些人则想办法为他恢复名誉。They even had clips of Nixon announcing his candidacy.新闻中还配有尼克松宣布竞选的录音剪辑....
Pentagon spokes-man Williams says those talks are coming along quite well.五角大楼发言人威廉斯说那些会谈进展得相当顺利。A group of people made a circle around the Pentagon.一群人在五角大楼四周围成一圈。The Pentagon says bad weather is hampering the allied ai...