lifting hook

基本解释

And here's the new and improved crucible with lifting hook in action.
和這裡的行動與解除掛鉤新的和改進的熔爐。
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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.
操作時，吊臂下嚴禁站人。應注意吊臂和吊鉤的速度和位置，避免發生事故。
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.
介紹了一種用於定直逕圓斷麪重物起吊的自動抓捕吊鉤，若需要長期連續起吊圓斷麪定直逕物件時，可以實現起吊過程的自動抓捕和釋放。