INFLUENCE OF EDGE CONDITION OF SLIT-STEEL STRIP ON WELDING QUALITY OF SMALL SIZED HEAVY-WALLED WELDED PIPE AND RELEVANT CONTROL MEASURES是什么意思_INFLUENCE OF EDGE CONDITION OF SLIT-STEEL STRIP ON WELDING QUALITY OF SMALL SIZED HEAVY-WALLED WELDED PIPE AND RELEVANT CONTROL MEASURES在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句