采用电加热法加热时，需注意热电偶及加热圈的安装要尽可能靠近坡口，但不得妨碍焊工接近接头。
When an electric heating method is used for heating, thermal couple and heating coil should be installed closest to the bevel while should not hinder the access of welder to the joint.
随着钢结构在高层建筑中的大量应用，中厚板自动板横焊工艺成为其制造，安装过程中举足轻重的关键技术之一。
Along with the increase using of steel structure in tall building, Horizontal Welding technology of medium plate play a decisive role in construction and installing.
检验和评定，应根据设备类别，分别按安装工程、现场组焊工程两个分部工程进行。
The inspection and evaluation should be carried out in two partial projects of installation, field assembling and welding according to equipment classification.
检验和评定，应根据设备类别，分别按安装工程、现场组焊工程两个分部工程进行。
The inspection and evaluation should be carried out in two partial projects of installation, field assembling and welding according to equipment classification.
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