我洗不掉这焦痕.I could not wash away the mark of the scorch.焦痕: 部件表面的棕色印记或条纹.MARKS : Brown marks or streaks on the surface of the part.地面被烧得焦痕累累,光秃秃一片.The earth was scorched and bare....
炉箅子是高炉热风炉的重要部件之一.Furnace grate is a main part of hot blast stove.用于高炉 、 热风炉砌筑刚玉砖、莫来石砖 、 硅线石砖 、 低蠕变高铝砖.Used for corundum bricks, mullite bricks, silicate bricks masonry in blast furnaces, hot air stoves.热风炉是高炉系统中非常重要的设备之一...