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自发发生
agric.
spontaneous occurrence
自发 发生
:
100 phrase
in 28 subjects
Agriculture
9
Animal husbandry
4
Architecture
1
Automobiles
2
Aviation
3
Dermatology
1
Desert science
3
Earth sciences
2
Ecology
1
Economy
3
Electric machinery
1
Electronics
3
Entomology
1
Explosives and Explosive Ordnance Disposal
3
General
17
Genetics
8
Information technology
2
Life sciences
3
Mechanics
1
Medical
1
Metallurgy
2
Nautical
1
Nursing
1
Polymers
1
Reproductive biology
5
Space
2
Sports
1
Technology
18
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