 |
| |||
| opaque material (for certain, electromagnetic or particle, radiation) | |||
| opaque substance | |||
| matière opaque: 3 phrases in 1 subject |
| Nuclear physics | 3 |
|
| |||
| opaque material (for certain, electromagnetic or particle, radiation) | |||
| opaque substance | |||
| matière opaque: 3 phrases in 1 subject |
| Nuclear physics | 3 |