![]() |
| |||
natural emission | |||
| |||
natural radiation |
天然 放射 : 33 phrases in 14 subjects |
Chemistry | 1 |
Earth sciences | 1 |
Ecology | 1 |
Electronics | 5 |
Environment | 1 |
Geology | 2 |
Geophysics | 1 |
Law | 1 |
Metallurgy | 2 |
Nuclear physics | 2 |
Oil / petroleum | 1 |
Sports | 2 |
Technology | 11 |
Wind Energy | 2 |