Below-the-Hook Lifting Devices 下吊钩提升装置
In this stage, the lifting frame was fixed to a hook attached to a crane, and the hull was lifted completely clear of the seabed and transferred underwater into the lifting cradle.
在这一阶段,吊架固定在吊车的挂钩上,船体完全脱离海床,在水下被转移到吊篮里。
XI. The use of cranes should stick to the "Ten Don 'ts" regulations. Climbing on the lifting objects and walking or staying under the hook is prohibited.
第十一条使用起重设备要严格执行“十不吊”的规定。严禁任何人攀登吊运中的物体,以及在吊钩下通过或停留。
We have modified the CD electric hoist into a double hook hoist with synchronous load lifting.
我们在CD型电动葫芦基础上,改进设计成双钩同步起吊电动葫芦。
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