The synthesis methods of magnesia - alumina spinel are electro - fusion and sintering process.镁铝尖晶石的合成方法有电熔法和烧结法.Magnesite deposits account for approximately 80 % of total magnesia production.大约80%的氧化镁产量来自菱镁矿.A substance...
他心情非常烦乱，嘴里咕咕哝哝地咒骂着。He was in a right tizzy, muttering and swearing.汽车飞驰而去，留下我在那里大声咒骂。I was left shouting abuse as the car sped off.他冲我高声咒骂。He screamed unholy things at me....
She felt often she must suffocate.她不时感到自己非窒息致死不可.Are you trying to suffocate us with that putrid smell?你是想用那讨厌的气味把我们窒息死 吧 ?But they do suffocate from a lack of air.但它们确实也会因为缺少空气而窒息....