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射线 分 析 : 236 phrases in 26 subjects |
Agriculture | 3 |
Aviation | 1 |
Chemistry | 14 |
Compressors | 2 |
Earth sciences | 19 |
Ecology | 2 |
Electronics | 65 |
Engineering geology | 2 |
Explosives and Explosive Ordnance Disposal | 1 |
General | 5 |
Genetics | 1 |
Geology | 10 |
Geophysics | 4 |
Life sciences | 1 |
Medical | 1 |
Metallurgy | 48 |
Nursing | 1 |
Oil / petroleum | 4 |
Oil processing plants | 1 |
Plastics | 3 |
Polymers | 1 |
Reproductive biology | 1 |
Space | 4 |
Steel production | 3 |
Technology | 38 |
Textile industry | 1 |