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感化: 138 phrases in 17 subjects |
Antennas and waveguides | 2 |
Aviation | 1 |
Education | 8 |
Electronics | 4 |
General | 47 |
Geophysics | 1 |
Law | 7 |
Medical | 20 |
Metallurgy | 1 |
Military | 1 |
Nanotechnology | 1 |
Oil and gas | 1 |
Oil processing plants | 1 |
Pediatrics | 1 |
Radio | 1 |
Technology | 39 |
United Nations | 2 |