环形焊缝自动焊接 automatic welding of girth weld
环形焊缝焊接
Circular weld welding
以上为机器翻译结果，长、整句建议使用 人工翻译 。
利用模型试验研究了大型圆柱形壳体与法兰对接环形焊缝的焊接变形。
Welding deformations due to circumferential welds at the joint between the large cylindrical shell and the flange is studied by model test.
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