lifting hook

基本解释

And here's the new and improved crucible with lifting hook in action.
和这里的行动与解除挂钩新的和改进的熔炉。
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Pay attention to the speed and the position of the lifting jib and the lifting hook so as to avoid accidents.
操作时，吊臂下严禁站人。应注意吊臂和吊钩的速度和位置，避免发生事故。
This paper introduces a kind of automatic lifting hook which is used to raise things with circular sections and fixed diameters. It can catch and release things automatically.
介绍了一种用于定直径圆断面重物起吊的自动抓捕吊钩，若需要长期连续起吊圆断面定直径物件时，可以实现起吊过程的自动抓捕和释放。