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hydrogen ['haɪdrəʤ(ə)n] n
gen. 氢第1号元素
agric. 氢 (H, 1 号元素)
auto. 氢H
avia. 【化】氢 (化学元素，符号 H)
compr. 氢气
earth.sc. 氢化学元素
environ. 氢 H
met. 氢 (H)
tech. 氢
hydrogen A flammable colourless gas that is the lightest and most abundant element in the universe. It occurs mainly in water and in most organic compounds and is used in the production of ammonia and other chemicals, in the hydrogenation of fats and oils, and in welding ['haɪdrəʤ(ə)n] n
environ. 氢 (易燃、无色的气体，且是最轻和宇宙中含量最丰富的元素，它主要存在于水和大部分的有机化合物中，且被使用于制造氨和其他化学物质、油和脂的氢化，和焊接中。)
hydrogen: 1552 phrases in 65 subjects
Agriculture56
Air defense2
Animal husbandry14
Architecture3
Automobiles30
Aviation51
Biophysics1
Business4
Chemistry116
Compressors4
Construction1
Consulting2
Dermatology2
Desert science2
Drilling3
Earth sciences25
Ecology11
Electric machinery50
Electrochemistry1
Electronics113
Engineering geology3
Environment1
Explosives and Explosive Ordnance Disposal2
Food industry14
Food service and catering7
General41
Genetics2
Geology9
Geophysics25
Hydroelectric power stations1
Isolation1
Mechanics1
Metallurgy230
Metalworking1
Mining1
Molecular genetics7
Nautical6
Nuclear and fusion power8
Nuclear physics3
Nursing2
Oil / petroleum129
Oil processing plants22
Perfume2
Pest control3
Pharmacology32
Physical chemistry1
Plastics6
Politics1
Polymers9
Rail transport3
Refrigeration7
Reproductive biology5
Shipbuilding22
Skydiving2
Space105
Sports3
Steel production7
Surgery1
Technology300
Telecommunications1
Textile industry6
Thermal Energy1
United Nations4
Water resources21
Wind Energy3

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