本实用新型提供一种新型封闭式吊钩装置，用于起重运输业。
The utility model provides a novel closed hook, which is used for the hoisting industry and the transportation industry.
织布机的控制装置由硬打孔卡和吊钩组成。
The loom is controlled by a system of stiff punch cards and hooks.
吊钩是液压升降平台车的附加起重装置。
Hook is a hydraulic lifting platform car attached lifting device.
始终确保吊钩或装置有光滑的边缘，不至于损坏吊带的环眼。
Always ensure that lifting hooks or device have smooth edges that will not damaged the eyes of the sling.
采用一种新的吊钩测试装置和探针测试弹性环。
A new hook test fixture has been introduced to test elastic loops using the head probe.
吊钩三维定位检测装置在冶金起重机上的应用。
Application of 3d hook positioning and measuring device to metallurgical crane.
安装灯具时，灯具上升到自动挂钩卸荷装置的位置后自动挂到吊钩的钩形槽里；
When installed, the high-pole lamp is automatically hung in a hook-shaped trough of the hanging hook after raising to the position of the automatic hanging and unloading gear;
安装灯具时，灯具上升到自动挂钩卸荷装置的位置后自动挂到吊钩的钩形槽里；
When installed, the high-pole lamp is automatically hung in a hook-shaped trough of the hanging hook after raising to the position of the automatic hanging and unloading gear;
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