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| selective interstellar absorption | |||
| differential absorption (of radiation) | |||
| differential absorption | |||
| absorption différentielle: 11 phrases in 7 subjects |
| Communications | 1 |
| Earth sciences | 1 |
| Environment | 1 |
| Health care | 3 |
| Natural sciences | 1 |
| Nuclear physics | 3 |
| Technology | 1 |