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.硅线石耐火浇注料适用于流化床锅炉的燃烧部位.Sillimanite refractory castable is good in use at combustion ...
脸部的略图a crude drawing of a face画一幅北美的略图.Outline a map of North America.当全部观测方向都已包括时, 略图就正确地表示出图形.When all observed directions have been included, the diagram will correctly represent the figure....