... welding terminals 电焊机接线端，电焊机接线端子 weld pass 焊接道次；焊接道次,焊接次数 scarf weld 斜面焊接, 两端搭接焊, 嵌接焊 ...
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weld pass volume 焊道体积
multiple-pass weld [机] 多道焊缝
single-pass weld [机] 单道焊
one-pass weld 单层焊缝
multi-pass weld 多层多道焊
single pass weld 单道焊
The etched section also reveals that multiple weld passes were made over the top of the original submerged arc weld pass.
从酸蚀断面还可以看出：在原自动埋弧焊的上面覆盖有多层焊道。
The effects of tempering weld-pass treatment on toughness of HAZ of X80 pipeline steel were studied by the technique of welding thermal simulation and the method of microscope analysis.
采用焊接热模拟技术和显微分析方法，研究了回火焊道热处理对X80级管线钢焊接热影响区韧性的影响规律。
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