Studies indicate that chymist coprecipitation azeotropic distillation can better prevent from hard - agglomeration and obtains homodisperse nanoparticle.研究表明,在共沉淀法中辅以共沸蒸馏过程,可以较好地防止粉体的硬团聚,得到分散均匀的纳米级超细粉体....
The House of Representatives approved a new budget plan.众议院批准了一项最新预算案。British representatives abroad are cotinually drawing attention to and promoting our success.英国驻外使节就不断宣扬我们的成就,以引起外国的注意.The House of Representatives ap...