There can be little doubt that he will offend again.毋庸置疑他还会再犯的。They have the usual quota of human weaknesses, no doubt.毫无疑问，他们身上也有人所共有的弱点。This new information does throw doubt on their choice.这个新信息确实使人们对他们的选择产生了怀疑。...
镁铝尖晶石的合成方法有电熔法和烧结法.The synthesis methods of magnesia - alumina spinel are electro - fusion and sintering process.红色的镁铝榴石是云南最重要的宝石资源之一.Red pyrope is one of the most important gem resources in Yunnan.镁铝硅胶泥加工销售.Meilu: clean...