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rough atomic weight
el.	número de masa

rough: 277 phrases in 49 subjects

Agriculture	35
Animal husbandry	4
Astronautics	2
Automobiles	3
Bacteriology	2
Botany	11
Chemistry	2
Commerce	2
Communications	4
Construction	4
Cultural studies	2
Earth sciences	1
Ecology	2
Electronics	3
Entomology	1
Environment	4
Finances	1
Fish farming pisciculture	14
Footwear	5
Forestry	3
General	5
Geology	1
Human rights activism	2
Ichthyology	8
Industry	38
Information technology	2
Knitted goods	1
Leather	2
Life sciences	8
Loading equipment	4
Marketing	2
Mechanic engineering	7
Medical	2
Metallurgy	11
Meteorology	13
Mexican	2
Microbiology	1
Microsoft	1
Natural resourses and wildlife conservation	3
Natural sciences	30
Oceanography & oceanology	1
Packaging	3
Pest control	4
Spanish	2
Statistics	1
Technology	9
Transport	7
United Nations	1
Wood processing	1