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分级法
busin.
grade method
commer.
ranging method
oil
stage method
分级 法
:
112 phrases
in 31 subjects
Agriculture
4
Animal husbandry
5
Artificial intelligence
1
Aviation
1
Biotechnology
2
Business
5
Chemistry
1
Desert science
1
Drilling
1
Earth sciences
1
Economy
1
Electronics
25
Finances
1
Genetics
1
Geology
1
Information technology
2
Librarianship
1
Management
1
Marketing
1
Mathematics
1
Metallurgy
7
Multimedia
1
Navigation
1
Nonferrous industry
1
Nursing
1
Polymers
3
Reproductive biology
1
Space
3
Technology
33
Telecommunications
3
Winemaking
1
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