Definition
射电 is a technical term meaning 'radio' in the context of astronomy and astrophysics — it refers to the radio-frequency portion of the electromagnetic spectrum. You'll see it in compounds like 射电望远镜 (radio telescope) and 射电天文学 (radio astronomy). It is not used for everyday radio (收音机) or radio broadcasts (广播).
attr.
(attributive) radio- (in astronomy and astrophysics contexts)
Examples
- 射电。shè diàn wàngyuǎn jìng kěyǐ guāncè dào yáoyuǎn de xīngxì.Radio telescopes can observe distant galaxies.
- 射电。Kēxuéjiā lìyòng shè diàn jìshù yánjiū yǔzhòu de qǐyuán.Scientists use radio technology to study the origin of the universe.
- 射电。Zhè zuò shè diàn tiānwén tái wèiyú piānyuǎn de shānqū.This radio observatory is located in a remote mountainous area.
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