Its most outstanding characteristic is to transform transverse bracing welding from air to ground, thus securing construction and ensuring assembly quality.
其最大特点是将空中焊接横联作业转化为地面作业，能确保施工安全和拱肋拼装质量。
Quality and schedule of group welding on site has been improved through pre-assembly.
通过预组装，施工现场组焊质量和周期得到了保证。
It is essential to control assembly and welding deformations for large scale spheral tank with thin wall in order to guarantee spheral tank construction quality.
大型薄壁球罐组装及焊接变形的控制是保证球罐施工质量的关键，文章从球罐半成品、球罐组装及焊接工艺三方面介绍了控制球罐组装及焊接变形的措施。
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