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氮
gen. nitrógeno m
environ. nitrógeno m (一种在食品供应的植物和动物饮食中必要的营养物质。动物从含氮的化合物中获得的，特别是氨基酸。虽然空气中差不多80%的是气态氮，但非常少的生物体有能力以这种形式使用它。在微生物体已经把氮转变成之后能被吸收的氨或者硝酸盐后，更高等的植物通常能从土壤中获得它。)
food.ind. N
氮
: 137 phrases in 20 subjects
Agriculture43
Animal husbandry4
Biotechnology1
Botany1
Chemistry3
Environment13
Fish farming pisciculture2
Food industry3
Food service and catering16
General1
Medical6
Microbiology5
Name of organization6
Pest control1
Research and development1
Soil science1
Thermal Energy8
United Nations15
Veterinary medicine6
Water supply1

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