久久国产欧美日韩精品,日韩国产精品久久久久久亚洲,99视频精品全部免费免费,91精品国产综合久久走光

The refractory insulating bricks were produced , taking alumina, soft clay, cyanite al as raw materials.以工業(yè)氧化鋁 、 結(jié)合粘土 、 藍晶石等為原料,應(yīng)用聚苯乙烯球燒先注和可塑成形法研制成功了耐火隔熱磚....

n.銅靛石，銅礬...

chalcocyanite的音標：chalcocyanite的英式發(fā)音音標為：[k?lk??'sa??na?t]chalcocyanite的美式發(fā)音音標為：[k?lko?'sa??na?t]...

n.銅靛石...

n.藍晶石...

cyanite的音標：cyanite的英式發(fā)音音標為：['sa???na?t]cyanite的美式發(fā)音音標為：['sa???na?t]...

hydrocyanite的音標：hydrocyanite的英式發(fā)音音標為：[ha?dr?'sa??na?t]hydrocyanite的美式發(fā)音音標為：[ha?dr?'sa??na?t]...