shielding: 49 phrases in 15 subjects |
Communications | 2 |
Earth sciences | 6 |
Electronics | 9 |
Environment | 2 |
General | 7 |
Health care | 3 |
Industry | 4 |
Information technology | 1 |
Life sciences | 1 |
Materials science | 1 |
Mechanic engineering | 2 |
Medical | 3 |
Metallurgy | 6 |
Nuclear physics | 1 |
Transport | 1 |