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- Water contains hydrogen and oxygen. 水含有氢和氧。
- The system, made by Linde, splits hydrogen fluoride into fluorine. 这个系统，由林德集团制造，能将氟化氢分解成氟气。
- Water is composed of hydrogen and oxygen. 水由氢和氧组成。
- fluoride hydrogen 氟化氢
- Water is composed of the elements hydrogen and oxygen. 水是由氢元素和氧元素组成的。
- Water may be resolved into hydrogen and oxygen. 水可以分解为氢和氧。
- Does fluoride help prevent cavities? 氟可以防止蛀牙吗?
- The hydrogen is the known the lightest element. 氢是已知的最轻的元素。
- Lab Experiment on Harm of Fluoride on Rubber Trees. 大气氟化物对橡胶树的伤害实验研究。
- Dried Aluminium Fluoride Producing Facility. 干法氟化铝生产装置建设。
- Hydrogen and oxygen combine/Hydrogen combines with oxygen to form water. 氢与氧化合成水。
- Study on Polyvinylidene Fluoride Coating. 聚偏氟乙烯涂料的研究。
- A molecule of water consists of two atoms of hydrogen and one atom of oxygen. 水分子含有两个氢原子和一个氧原子。
- Water can be dissolved into hydrogen and oxygen. 水能分解成氢和氧。
- PH is 6.5 to 8, no sulfur or fluorid. PH值为6.;5到8之间，不含硫、氟化物。
- Both hydrogen and oxygen are elements. 氢和氧都是化学元素。
- Fluoride has many effects on cell mem brane . 氟对细胞膜有多方面的影响。
- Hydrogen is a one-valence element. 氢是一价的元素。
- Water is a compound of hydrogen and oxygen. 水是氢和氧的化合物。
- This metal acts on water to set hydrogen free. 这种金属作用于水，就释放了氢气。
