1.
a positively charged atom of hydrogen; that is to say, a normal hydrogen atomic nucleus.
带正电的氢离子，即常态的氢原子核。
2.
This bond is a weak electrostatic force of attraction between the pro ton of a hydrogen atom and the electron cloud of a neighboring electro-negative atom.
氢键是氢原子核及其相邻的负电荷原子的电子云之间的一种微弱的静电吸引力。
3.
Zap it from all sides simultaneously with the lasers and, scientists hope, the pellet will implode and the hydrogen nuclei will fuse.
科学家希望，通过从各个方向用激光同时轰击，原子核球发生内爆，氢原子核发生聚变。
4.
When the electrons fly away from the hydrogen nuclei,, they are attracted toward the oxygen atoms.
当氢原子的电子飞离其核时，这些电子就被吸向氧原子。
5.
The nuclei of atoms fuse, producing heavier nuclei and releasing nuclear energy, just as occurs in a hydrogen bomb.
原子核发生聚变，形成较重的原子核，并释放出原子核能，就象氢弹爆炸时所发生的情说那样。
6.
During this stage the Sun "burns" hydrogen in its core, combining hydrogen atoms into helium atoms in a process of nuclear fusion.
这一时期太阳在它的核心“燃烧”氢，将氢原子通过核聚变结合成氦原子。
7.
In certain fusion processes, among nuclei of the hydrogen isotopes, neutrons of high energy are liberated.
在氢同位素原子核中的某些熔合过程中，会释放出高能中子。
8.
An isotope of hydrogen with one proton and one neutron in the nucleus having an atomic weight of2.014.
氘氢的一种同位素，在其原子核内有一个质子和一个中子，其原子重量为2。014
9.
Flame Atomic Absorption Spectrometric Determination of H_2O_2 Using(Au)_(core)(Ag)_(shell )Nanoparticles
(Au)_核(Ag)_壳纳米微粒-火焰原子吸收光谱法测定过氧化氢
10.
Molecular Modeling of Pyrimidine Nucleoside Phosphorylase, Squamous Cell Carcinoma Antigen and Methylenetetrahydrofolate;
嘧啶核苷磷酸化酶、鳞状上皮细胞癌抗原以及亚甲基四氢叶酸脱氢/水解酶的分子模拟
11.
Hydrocarbons are molecules containing only hydrogen and carbon atoms.
碳氢化合物是只含碳原子和氢原子的分子。
12.
A hydrogen molecule consists of only two hydrogen atoms with the same atomic weight.
氢分子仅由两个原子量相同的氢原子组成。
13.
The fusion of atomic nuclei releases tremendous amounts of energy which can be used in such things as the hydrogen or fusion bomb.
原子核的融合释放出大量的能量，这些能被用于氢弹或原子弹之类的东西。
14.
a bomb releases atomic energy by union of light (hydrogen) nuclei at high temperatures to form helium.
一种通过轻原子核（氢）在高温下聚变成氦原子时释放大量能量的炸弹。
15.
Using carbon-dating techniques, archaeologists can determine the age of many ancient objects by measurement the amount of radioactive carbon they contain.
参考译文：在太阳深处的内核中，氦和氢经过一系列高热原子核反应熔合作用产生了太阳的能量。
16.
hydrogen maser frequency standard
氢激射型原子频率标准
17.
nozlle for atomic hydrogen hand welding equipment
原子氢手工焊设备喷嘴
18.
A molecule of ammonia is made up of one atom of nitrogen and three atoms of hydrogen.
氨分子包含一个氮原子和三个氢原子。