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有效度 yǒuxiàodù
avia.	effectivity
busin.	degree of efficiency; level of significance
met.	validity
oil	effectiveness; availability
repr.biol.	significance

有效度: 605 phrases in 58 subjects

Agriculture	23
Air defense	3
Animal husbandry	2
Architecture	5
Artificial intelligence	1
Automobiles	14
Aviation	15
Bridge construction	21
Business	5
Chemistry	6
Combustion gas turbines	1
Compressors	2
Construction	2
Desert science	3
Drilling	13
Earth sciences	18
Ecology	5
Economy	1
Electric machinery	15
Electronics	27
Engineering geology	13
Environment	1
Explosives and Explosive Ordnance Disposal	2
General	4
Genetics	1
Geology	1
Geophysics	6
Hydroelectric power stations	12
Information technology	5
Management	1
Marketing	1
Mathematics	1
Mechanics	1
Metallurgy	29
Mining	5
Nautical	2
Nuclear and fusion power	1
Nursing	1
Oil / petroleum	34
Oil processing plants	5
Physics	1
Plastics	2
Polymers	5
Project management	2
Rail transport	3
Refrigeration	6
Semiconductors	2
Shipbuilding	5
Soil science	1
Space	26
Sports	1
Surgery	1
Swimming	1
Technology	212
Telecommunications	5
Textile industry	6
Water resources	2
Wind Energy	16