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Ammonia Nitrite Nitrate
chem., abbr.	ANN

Ammonia: 191 phrases in 27 subjects

Agriculture	28
Agrochemistry	1
Agronomy	2
Biology	1
Chemistry	73
Coal	16
Construction	1
Cultural studies	1
Earth sciences	3
Environment	4
Food industry	5
General	14
Industry	2
Informal	1
Materials science	1
Medical	3
Metallurgy	3
Mining	2
Natural resourses and wildlife conservation	13
Natural sciences	2
Nuclear physics	5
Oil / petroleum	1
Optics branch of physics	1
Physics	1
Refrigeration	2
Soil science	1
Technology	4