亚洲男人天堂av,国产一区二区久久精品,国产精品一区二区久久精品,国产精品久久久久久一区二区三区,五月婷婷在线观看视频,亚洲狠狠色丁香婷婷综合

n. 多鋁紅柱石;莫來石; 精選例句 高考 1、 The properties of corundum - mullite - zirconia grogs made by reaction - sintering process and their carbon - bonded materials have been investigated. 研究了 反應燒結(jié) 制備的鋯剛玉莫來石系熟料及其碳結(jié)合材料的性能. 來源:互聯(lián)網(wǎng) 2、 The XRD result shows that the main crystalline phase of the ceramic is mullite. 射線衍射分析結(jié)果表明,材料的主晶相為莫來石. 來源:網(wǎng)絡(luò)期刊摘選