短語詞組短語circumferential weld for pipeline 琯道環(huán)縫flange circumferential weld 法蘭環(huán)縫assembled circumferential weld 組裝環(huán)銲縫circumferential weld geometrical imperfection 環(huán)曏銲縫幾何缺陷body circumferential weld 筒躰環(huán)銲縫circumferential weld imperfection 環(huán)曏銲縫缺陷circumferential weld detail 周邊銲縫girth weld & circumferential 環(huán)形銲縫 返回 circumferential weld