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核级[品种;质量等]【核】 héjí
el. nuclear grade
核级: 66 phrases in 20 subjects
Agriculture6
Aviation5
Business1
Electronics11
Finances3
General5
Genetics7
Information technology1
Librarianship1
Metallurgy1
Molecular genetics2
Oil / petroleum1
Plastics1
Polymers3
Reproductive biology1
Securities1
Space7
Sports2
Technology6
United Nations1