1.
The element hydrogen comprises 90% of the matter in gaseous nebulae.
元素氢占气体星云物质的百分之九十。
2.
Time-dependent Quantum Dynamics Study for Reactions between Hydrogen and Group IV Hydride;
碳族元素氢化物与氢反应的量子含时动力学研究
3.
Hydrogen and oxygen are what make up water.(=Hydrogen and oxygen are the things which make up water.)
氢和氧是构成水的元素。
4.
Both hydrogen and oxygen are elements.
氢和氧都是化学元素。
5.
The hydrogen is the known the lightest element.
氢是已知的最轻的元素。
6.
The water is formed from oxygen element and hydrogen element.
水由氧元素和氢元素组成。
7.
Water is composed of the elements hydrogen and oxygen.
水是由氢元素和氧元素组成的.
8.
Water is a compound containing the elements hydrogen and oxygen.
水是含有氢元素和氧元素的化合物。
9.
Hydride : Inorganic compound of hydrogen with another element.
氢化物: 氢与另一种化学元素的无机化合物。
10.
Study on Absorb-hydrogen Principle of Hydrogen Storage Alloys and Functions of Substitute Element in Hydrogen Storage Alloys;
储氢合金吸氢机理及掺杂元素作用机制的研究
11.
Hydrogen and oxygen are elements, but water, which is formed when they combine, is not.
氢和氧是元素，但两者化合而成的水不是元素。
12.
It gets the hydrogen and helium right.
根据结果表示，氢元素和氦元素都比较正常。
13.
Water contains two kinds - hydrogen and oxygen;
水含有两种元素，即氢和氧；
14.
sugar contains three - carbon, hydrogen, and oxygen;
糖含有三种元素：碳、氢和氧。
15.
For instance, water is a combination of two elements, hydrogen and oxygen.
比如水，是由氢和氧两种元素结合的。
16.
Hydrocarbon:Any of a class of organic compounds composed only of carbon and hydrogen.
烃:只含碳和氢两种元素的有机化合物。
17.
Hydrogen is the most common element in the universe.
氢是宇宙中最平常的元素，
18.
After hydrogen, the atom with the simplest structure is that of helium.
在氢元素之后，氦的原子结构最简单。