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| ionosphere | |||
| 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 | |||
| D layer; ionosphere D-layer | |||
| ionosfääri: 4 phrases in 3 subjects |
| Electronics | 2 |
| Life sciences | 1 |
| Natural sciences | 1 |