随着螺栓球节点网架在悬挂吊车工业厂房中的推广应用，其疲劳性能成为工程界多年来尚待解决的热点问题。
With the popularization and application of this structure in industrial factory with suspended crane, the fatigue performance becomes the hot problem to be solved for many years in engineering circle.
随着其越来越广泛地应用到工业厂房建筑，在悬挂吊车作用下它的疲劳问题已成为设计工作者关注的焦点问题。
It has become a focus question for fatigue of plate gird structure with welded hollow sphere under suspending crane by designer with it more and more widely used in industry workshop.
螺栓球节点网架结构在悬挂吊车作用下的疲劳是工程界和学术界关注的热点，该结构的疲劳关键是高强度螺栓的疲劳。
The fatigue of the grid structure with bolt-sphere joints under the function of suspended crane has been greatly concerned by engineers and researchers.
螺栓球节点网架结构在悬挂吊车作用下的疲劳是工程界和学术界关注的热点，该结构的疲劳关键是高强度螺栓的疲劳。
The fatigue of the grid structure with bolt-sphere joints under the function of suspended crane has been greatly concerned by engineers and researchers.
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