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theory ['θɪ(ə)rɪ] n
gen.	…论; 分析; 揣度; 意见; 理念; 观念
agric.	说; 学说 (theoria)
econ.	论说; 论点; 方法
hydroel.st.	理论; 学说; 见解; 原理; 概念; 推测
sport.	论
theory π n
expl.	量纲基本定理 π (量纲基本定理常称作“定理,是相似理论的基本定律)

theory: 5449 phrases in 111 subjects

Accounting	1
Advertising	29
Agriculture	159
Air defense	6
Anatomy	4
Animal husbandry	59
Architecture	1
Artificial intelligence	59
Automobiles	4
Aviation	56
Biochemistry	2
Biophysics	5
Biotaxy	1
Biotechnology	3
Bridge card game	1
Bridge construction	65
Business	477
Cartography	2
Chemistry	103
Chess	1
China	6
Commerce	39
Communications	2
Compressors	3
Computer networks	3
Computers	4
Construction	12
Consulting	3
Corporate governance	15
Cricket	1
Cryptography	3
Cytogenetics	12
Demography	1
Dermatology	4
Desert science	33
Drilling	3
Earth sciences	37
Ecology	35
Economy	463
Electric machinery	14
Electronics	133
Engineering geology	50
Entomology	1
Environment	13
Explosives and Explosive Ordnance Disposal	69
Finances	236
Football	2
Forestry	6
General	46
Genetics	118
Geology	4
Geophysics	14
Heavy equipment vehicles	7
Horticulture	3
Human resources	2
Hydraulics	3
Hydroelectric power stations	30
Information technology	75
International Monetary Fund	23
International trade	50
Labor law	3
Labor organization	17
Librarianship	8
Life sciences	18
Management	87
Marketing	9
Mathematics	49
Medical	3
Metallurgy	179
Microbiology	8
Mining	3
Molecular genetics	25
Morphology	5
Multimedia	7
Nautical	8
Nuclear and fusion power	2
Nursing	18
Oil / petroleum	69
Otorhinolaryngology	22
Perfume	1
Physics	5
Physiology	2
Phytophathology	1
Plastic surgery	7
Plastics	14
Polygraphy	1
Polymers	46
Port facilities	2
Programming	1
Project management	19
Psychology	58
Rail transport	18
Refrigeration	3
Remote sensing	1
Reproductive biology	39
Scientific	1
Securities	117
Selective breeding	10
Shipbuilding	3
Space	144
Sports	59
Statistics	24
Steel production	1
Superconductivity	2
Surgery	17
Technology	1469
Telecommunications	36
Tennis	7
Textile industry	114
Water resources	4
Wind Energy	67