The traditional badminton net &post set, one kind needs to bury the post which can only limit in the fixed location;
2
结合检测实践，对螺栓球网架焊缝超声波探伤技术应用中的若干问题进行了探讨。
Problems in ultrasonic inspection of the welds in the steel space grid structures with bolted joints are analyzed in combination with practical inspection.
3
焊接球网架的施工杆件下料加工值的计算以及网架网格尺寸的定位是保证网架整体安装质量的主要前提条件。
Calculation on baiting of truss of welded ball grid and setting of grid size are premises for assuring the quality of grid unity installation.
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