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氮-氧
earth.sc. nitrogen-oxygen
氮 -氧
: 481 phrases in 34 subjects
Agriculture20
Animal husbandry4
Automobiles25
Aviation9
Chemistry46
Desert science2
Earth sciences10
Ecology11
Electronics62
Engineering geology1
Environment5
Explosives and Explosive Ordnance Disposal4
Food industry2
General43
Genetics3
Geology2
Information technology1
Life sciences1
Metallurgy10
Molecular genetics1
Nautical5
Oil / petroleum7
Oil processing plants2
Pharmacology48
Polymers7
Research and development1
Semiconductors1
Space26
Sports2
Steel production1
Technology84
Textile industry3
United Nations21
Water resources11

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