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半衰 期: 66 phrases in 25 subjects |
Animal husbandry | 1 |
Automobiles | 1 |
Chemistry | 3 |
Desert science | 2 |
Earth sciences | 1 |
Ecology | 2 |
Electric machinery | 1 |
Electronics | 8 |
General | 3 |
Genetics | 1 |
Geophysics | 1 |
Librarianship | 2 |
Metallurgy | 2 |
Molecular genetics | 1 |
Nuclear physics | 4 |
Nursing | 4 |
Oil / petroleum | 3 |
Otorhinolaryngology | 1 |
Polymers | 3 |
Reproductive biology | 3 |
Space | 3 |
Sports | 1 |
Technology | 13 |
Textile industry | 1 |
United Nations | 1 |