This paper introduced that horizontal centrifugal casting technology is used to develop the composite acicular spheroidal graphite cast iron collar for tension reducing mill of Baogang pipe mill.
介绍了采用卧式离心铸造技术，试制宝钢钢管轧机使用的复合针状球铁张减机辊环的过程。
The whole nation is watching closely to see what happens over the next few years as Chengdu takes off the iron collar and breaks down the wall that kept farmers and urbanites separated for so long.
当成都取下这个钢铁枷锁，毁掉这个让农民和城市居民分割太久的高大围墙后，整个国家都在近距离观察成都在未来几年会发生什么。
The whole nation is watching closely to see what happens over the next few years as Chengdu takes off the iron collar and breaks down the wall that kept farmers and urbanites separated for so long.
当成都取下这个钢铁枷锁，毁掉这个让农民和城市居民分割太久的高大围墙后，整个国家都在近距离观察成都在未来几年会发生什么。
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