For increasing the resistance to wear and sealing property between bell and hopper of blast furnace the method overlaid welding a lay of TDGC-1 hard alloy on the matching surface of bell and hopper is used.是什么意思_For increasing the resistance to wear and sealing property between bell and hopper of blast furnace the method overlaid welding a lay of TDGC-1 hard alloy on the matching surface of bell and hopper is used.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句