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.
Alexander Graham Bell was the inventor of the telephone.亚·格·贝尔是电话的发明人.Alexander Graham Bell invented the telephone in 1876.一八七六年阿历山大·格雷厄姆·贝尔发明了电话.Alexander Graham Bell always lived by the philosophy that when one door cl...
数学试卷和英语试卷很难。The papers in maths and English are very testing.他为人刻薄、难相处是出了名的。He had a reputation for being bloody-minded and difficult.很多父母觉得要孩子循规蹈矩是件很难的事情。Many parents find it hard to discourage bad behaviour....
When was the last time you had anything in your twat besides a tampon?除了卫生棉条上次你下面有塞东西是何时?Tampon granuloma was in duced in rats with tampon embedding method and granuloma was weighed.棉球包埋法诱导大鼠棉球肉芽肿并测定肉芽肿的净重.The button ATR...
鸭嘴兽的家可以在水中,也可以在陆上.它是两栖动物.At home both in water and on land, the platypus is amphibious.两栖动物有时生活在水中,有时生活在陆上.Amphibians live partly in water and partly on land.你喜欢在陆上还是在海上旅行?Do you like to travel over land or sea?...
Conifer tree style such as pine, fir, spruce, redwood, juniper, etc.针叶类树包括松树 、 杉树 、 云杉 、 红木 、 刺柏, 等等.Conifer forests cover the eastern versant.东部山区被针叶树林覆盖.In conifer orchards new stumps should be removed.在针叶树的种子园,新的伐桩应予除...
钻书本的历史学者现在相当勉强和冷淡地承认了它.The bookish historian now accepts it, reluctantly and ungraciously enough.我的书本的封面是深蓝色的.My book has a dark blue cover.平切口刷金: 书本的切口刷上金箔然后圆脊.Gilt in the square: The foredge of a book gilded before rou...