through tang fastening screw 穿心压紧螺杆
This article is to confirm the corresponding factors for crack causing and the fatigue life, through an analysis of cracks at fastening plate, welding seams at the end of frame brace.
本文通过对交叉杆扣板直焊缝、端头环焊缝等各部位裂纹的分析，找出了其断裂机理及与疲劳寿命的相关因素。
Through the analysis and discussion of fastening intensity of trip bolt used in low voltage apparatus, the design data about screw join is calculated.
对低压电器螺钉连接的强度进行了理论分析和探讨，得出了螺钉连接的可靠性设计数据；
Through studying different view on green space benefit and different mode on development of green space, the approach and method of fastening development of city green space is put forward.
通过对绿地的经济效益及绿地的不同开发模式的分析研究，提出进一步加快城市绿地建设的途径和方法。
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