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底焊焊缝
meaning in Chinese
back run
back weld
backing weld
Related Words
斜焊缝
焊缝裂开
环状焊缝
焊缝腐蚀
封闭焊缝
焊缝面
竣工焊缝
背焊缝
焊缝间距
轻焊缝
底焊
底焊焊道
底荷
底荷河道沉积
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