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English thesaurus
Doubles Detector
abbr., post	DD (on AFCS-DD, 2004)

Doubles: 281 phrases in 39 subjects

Agriculture	12
Antennas and waveguides	10
Automated equipment	1
Book binding	1
Chemistry	14
Coal	2
Communications	1
Construction	22
Criminal law	3
Cultural studies	1
Earth sciences	11
Electronics	26
Finances	5
Fish farming pisciculture	5
General	14
Health care	2
Hydraulics	4
Immigration and citizenship	1
Industry	18
Information technology	2
International trade	2
Law	5
Life sciences	3
Marketing	2
Materials science	1
Measuring instruments	20
Mechanic engineering	17
Medical	16
Metallurgy	18
Microsoft	8
Natural sciences	5
Physical sciences	1
Statistics	1
Surveying	1
Taxes	5
Technology	3
Textile industry	2
Transport	15
Zoology	1