It is like cytidine, but with one oxygen atom removed.
Deoxycytidine is a compound and a nucleoside.
Oxygen Atom
英语例句库
In the whole process of forming hydrocarbon, there exist the joining and removal of hydrogen or oxygen atom and heteroatom from the beginning to end.
人所熟知的胡萝卜烷由胡萝卜素加氢构成,在转化中需要消耗大量的氢,因而整个过程是非常典型的氧化还原反应。
It was found that the compounds are adsorbed on the Ag surface through the carboxyl oxygen atoms, the benzene adopts acclivitous conformation, others lie low on the Ag surface.
在银溶胶表面上，羧基氧原子与银形成化学建，苯环是稍微倾斜地吸附在银胶面上，其它部分则平躺吸附于银溶胶表面。
原声例句
双语版 TED-Ed 演讲精选
Water is made out of two hydrogen atoms and one oxygen atom.
水分子由两个氢原子和一个氧原子构成。
Crash Course 综合篇
Silica structure is based on a tetrahedral arrangement of a silica atom bonded to oxygen atoms.
它的基本结构是由一个硅原子与四个氧原子成键，构成一个四面体。
科学大揭秘
You see, a water molecule is composed of two hydrogen atoms and one oxygen atom.
水分子是由两个氢原子和一个氧原子组成的。
Crash Course 天文篇
Some rocks from the Moon show a peculiar ratio of different kinds of oxygen atoms, called isotopes.
一些来自月球的岩石含有特殊比例的氧原子同位素。
Vox 观点
Then the loose oxygen atoms bump the chlorine atom out, freeing it to destroy more ozone molecules.
然后游离的氧原子撞击氯原子，释放出氯原子而破坏更多的臭氧分子。
双语版 TED-Ed 演讲精选
You already know that every water molecule is made up of two hydrogen atoms bonded to one oxygen atom.
众所周知，一个水分子是两个氢原子和一个氧原子组成的。
Crash Course 综合篇
But all of these silica based network solids I talked about so far contain both silicon and oxygen atoms.
但到目前为止，我所谈论的这些网状结构的硅化合物都同时含有硅和氧原子。
VOA Special 2018年11月合集
Ozone is a colorless combination of three oxygen atoms.
臭氧是三个氧原子的无色组合。
TED演讲（音频版） 2019年12月合集
An oxygen atom has just gone into your body.
一个氧原子刚刚进入你的身体。
化学 Crash Course
Well, oxygen atoms are more electronegative than hydrogen.
好吧，氧原子比氢原子更具负电性。
可汗学院：生物化学
Now both of these oxygen atoms would love to have eight electrons.
现在这两个氧原子都希望拥有八个电子。
Crash Course 综合篇
But there could be any number of paired oxygen atoms involved.
但可能涉及任意数量的成对氧原子。
Crash Course 综合篇
But what if it has two fewer oxygen atoms than it's " -ic" counterpart?
但是，如果它的氧原子比它的“-ic” 对应物少两个呢？
TED演讲（音频版） 2019年12月合集
It blasted tons and tons of oxygen atoms almost into empty space.
它几乎将成吨成吨的氧原子炸入真空。
Crash Course 综合篇
12 carbon atoms, 22 hydrogen atoms, and 11 oxygen atoms in every molecule.
每个分子中有12个碳原子、22个氢原子和11个氧原子。
Crash Course 综合篇
Specifically, they tell you how many oxygen atoms it has.
具体来说， 他们会告诉您它有多少个氧原子。
化学 Crash Course
The oxygen atom pulls harder on the molecule's electrons than the hydrogen does.
氧原子比氢原子更能吸引分子的电子。
可汗学院：生物化学
And molecular oxygen, once again, this is composed of two oxygen atoms. One, two.
分子氧，同样，它由两个氧原子组成。一二。
十万个为什么
If you've ever heard someone call water H2O, that's because, well, that's what it's made of two hydrogen atoms and one oxygen atom mixed together.
如果你曾经听到有人称水为 H2O，那是因为它是由两个氢原子和一个氧原子组成的。
经济学人 Science and technology
After about a day, the BCNF1 becomes saturated with oxygen atoms, and so has to be rejuvenated.
大约一天后，BCNF1 变得充满氧原子，因此必须恢复活力。
英语百科
Oxygen
Oxygen is a chemical element with symbol O and atomic number 8. It is a member of the chalcogen group on the periodic table and is a highly reactive nonmetal and oxidizing agent that readily forms compounds (notably oxides) with most elements. By mass, oxygen is the third-most abundant element in the universe, after hydrogen and helium. At standard temperature and pressure, two atoms of the element bind to form dioxygen, a colorless and odorless diatomic gas with the formula O
2. Diatomic oxygen gas constitutes 20.8% of the Earth's atmosphere. However, oxygen levels in the atmosphere are trending downward globally, possibly because of fossil-fuel burning. Oxygen is the most abundant element by mass in the Earth's crust as part of oxide compounds such as silicon dioxide, making up almost half of the crust's mass.