折 射率 : 258 phrases in 20 subjects |
Air defense | 3 |
Architecture | 1 |
Chemistry | 5 |
Communications | 1 |
Construction | 1 |
Desert science | 1 |
Earth sciences | 2 |
Electronics | 69 |
General | 6 |
Geophysics | 4 |
Information technology | 9 |
Metallurgy | 2 |
Oil / petroleum | 4 |
Physics | 1 |
Plastics | 1 |
Polymers | 9 |
Rail transport | 1 |
Space | 11 |
Technology | 95 |
Telecommunications | 32 |