 |
| |||
| ionosphere A region of the earth's atmosphere, extending from about 60 to 1000 kilometers above the earth's surface, in which there is a high concentration of free electrons formed as a result of ionizing radiation entering the atmosphere from space | |||
| ionosphere | |||
|
ionosphere : 27 phrases, 5 sujets |
| Communications | 2 |
| Électronique | 11 |
| Informatique | 1 |
| Sciences de la vie | 10 |
| Sciences naturelles | 3 |