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English thesaurus
atom per cent
abbr., polym.	ao
chem., abbr.	a/o
mater.sc.	at.% (MichaelBurov)

atom: 78 phrases in 15 subjects

Antennas and waveguides	1
Chemistry	20
Communications	3
Earth sciences	13
Electronics	28
Environment	1
General	3
Health care	1
Industry	1
Information technology	1
Lasers	2
Microsoft	1
Natural sciences	1
Polymers	1
Technology	1