The neutrons and protons form the core of the atom.中子和质子构成了原子核.The nucleus of an atom consists of neutrons, protons and other particles.原子核由中子 、 质子和其他粒子构成.30 years ago, scientists came up with the theory that protons and...
...a beam of neutrons.一束中子The nucleus of an atom consists of neutrons, protons and other particles.原子核由中子 、 质子和其他粒子构成.Neutrons and protons are bound together in the nucleus of an atom.在原子核里，中子和质子是结合在一起的。Each atomic clust...
她如愿进入敬老院并当上了出纳.She hoped to enter homes for the elderly and when a cashier.入住敬老院的老人都不玩牌.The elderly do not to play cards.敬老院的增加跟大家观念的改变有很大关系.The increase the elderly with you to change the concept of a great relationship...
I was humped like an old lady.我像个老妇人似的驼着背。Charlie humped his rucksack up the stairs to his flat.查利费力地将背包背到楼上自己的公寓里。I humped the case upstairs.我把箱子背到楼上。...the humped iron bridge spanning the railway...横越铁路的铁拱桥He was tall ...
用光度滴定法测定了 羧 甲基菊粉的取代度.Degree of substitution ( DS ) of carboxymethylinulin was analysed spectrophotometric titration.近几年,中国的菊粉市场逐渐兴起.The inulin market booming in China recently.目的: 利用毕赤嗜甲醇 酵母表达 的重组黑曲霉菊粉内切酶,从菊苣菊粉中制取低聚果糖.Ob...