She missed her footing and fell headlong down the stairs.她一脚踩空，头朝下摔下了楼梯。He ran headlong for the open door.他飞快地朝敞开着的门跑去。The country, they say, will inevitably now plunge headlong into decadence.他们说，现在整个国家会不可避免地一头陷入衰退中。Peo...
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 ...