narrow-gap submerged arc welding的意思|示意
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窄间隙埋弧焊
narrow-gap submerged arc welding的网络常见释义
窄间隙埋弧焊 ... 热丝埋弧焊hot wire submerged-arc welding 窄间隙埋弧焊narrow-gap submerged arc welding 埋弧焊机submerged arc welding machine ...