| 释义 |
D-layer
Thesaurus| Noun | 1. | D-layer - the lowest region of the ionosphere (35 to 50 miles up) that reflects low-frequency radio wavesD regionionosphere - the outer region of the Earth's atmosphere; contains a high concentration of free electrons |
D-layer
D-layer (D-region) See ionosphere.D-layer
Synonyms for D-layernoun the lowest region of the ionosphere (35 to 50 miles up) that reflects low-frequency radio wavesSynonymsRelated Words |