INFLUENCE OF EDGE CONDITION OF SLIT-STEEL STRIP ON WELDING QUALITY OF SMALL SIZED HEAVY-WALLED WELDED PIPE AND RELEVANT CONTROL MEASURES是什麼意思_INFLUENCE OF EDGE CONDITION OF SLIT-STEEL STRIP ON WELDING QUALITY OF SMALL SIZED HEAVY-WALLED WELDED PIPE AND RELEVANT CONTROL MEASURES在線翻譯_英語_讀音_用法_例句