顶它关闭的木制起重机吊钩和旋转动作。
Top it off with the wooden crane with hook and swiveling action.
钢水车无动力时,可用起重机吊钩倾斜,传递,旋转钢水包。
Tilt, transfer, and rotate the ladle to align with crane hooks in the event of a power failure.
工人爬上模块卸掉起重机的吊钩。
Then a man climbs the module and unfastens the cables of the crane.
工人爬上模块卸掉起重机的吊钩。
Then a man climbs the module and unfastens the cables of the crane.
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