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我们过去使用的铁水包都是单吊梁式结构的。因此,在吊运中,要把铁水包从这个吊钩递到另一个吊钩上,就非常困难。一是不安全,二是浪费时间。
The ladle we used to use was single beam structure. Therefore, it is very difficult to deliver the ladle from this hook to another hook during lifting. One is unsafe, the second is a waste of time.