The secondary parts such as radial sluice gate and its stand were neglected, the number of elements were decreased and the abnormal stress caused by improper loading were avoided in this method.
有限元模型减去了弧形闸门、闸门支架等非主要部件，使模型规模减小，避免了因荷载不恰当引起的应力异常。
In order to adapt the need of loading and unloading drill rod of iron gate-opening machine for large-scale blast furnace, the new change rock drill machine is designed.
为适应大型高炉开铁口机的装卸钎杆需要，设计开发了新型换钎机。
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