5.oxygen and hydrogen do not combine at room temperatures.
氧和在室温下不会起化合作用。
6.sodium chloride, hydrogen cyanide.
氯化钠，氯化
7.H bomb (=a hydrogen bomb)
弹
8.Water is a compound of hydrogen and oxygen.
水是和氧的化合物。
9.Hydrogen and oxygen are the constituents of water.
和氧是水的主要成分。
10.Hydrogen is a corlorless, odorless gas.
气是一种无色、无味的气体。
11.Water is made up of atoms of hydrogen and oxygen.
水由和氧的原子构成。
12.Water was dissolved into hydrogen and oxygen.
水被分解为和氧。
13.Hydrogen combines chemically with oxygen to form water.
和氧化合成为水。
14.A chemist can isolate the oxygen from the hydrogen in water.
化学家可以把水中的和氧分开来。
15.Water can be reduced to oxygen and hydrogen by electrolysis.
用电解法可以把水分解为氧和。
16.Homogenous reaction between hydrogen sulfide and elemental lead vapor removes hydrogen sulfide efficiently as the hot coal gas left the carbonizer.
气态铅和化在开炼焦室时，由于煤气降低温度，又生成化铅。
17.Our work focus on the research field of Photobiological hydrogen production, fermentative hydrogen production, dispose and resource utilization of organic waste, application of microorganism resource.
主要从事太阳能生物制、生物质发酵制、有机废物处置与资源化利用、资源微生物应用等研究。
18.The formation of carotane is the result of the hydrogen addition of carotene，and this process is very typical redox reaction，which needs plenty of hydrogen .
即使环境并非属于氧化,如果缺乏还原剂,胡萝卜素也不能转化成胡萝卜烷;
19.The main rason of leading to overhigh hydrogen content was insufficient anneal after forged.
磺处理;
氧化合物。
化
量
子
