... vertical down welding向下立焊 vertical position of welding立焊位置 vertical up welding向上立焊 ...
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... 立辊轧边机 vertical edger 立焊 vertical position of welding 立架链式运输机 overhead chain conveyor ...
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... TIG spot welding 立焊 vertical position of welding 火焰钎焊 brazing by flame 气体保卫电弧焊 ...
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The cold cracking sensibility of high tensile pipeline-steel was studied by Ygroove cracking test using seven kinds of high cellulose electrode of vertical down position welding.
采用七种高纤维素型立向下电焊条，通过斜y坡口裂纹实验，对高强管线钢的冷裂敏感性进行实验研究。
The project position of welder qualification test for long transporting pipe depends on vertical down welding basically, which is namely fixed pipe with axis horizontal welding (5gx).
长输管道的焊工考试项目位置基本以向下焊为主，即水平固定全位置焊(5gx)。
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