英语词汇“background radiation”的英英意思、用法、释义、翻译、读音、例句、短语、词组-英语词典

单词	background radiation
释义	background radiation in British English (ˈbækˌɡraʊnd ˌreɪdɪˈeɪʃən) noun nuclear physics low-intensity radiation from, for example, small amounts of radioisotopes in soil, air, building materials, etc background radiation in American English 1. Astronomy low-intensity, multidimensional microwave radiation present in space: its existence is used to support the validity of the big-bang theory since it is thought to bea remnant of the original explosion 2. Physics low levels of natural radiation existing on earth as a result of high-energy cosmic rays, the radioactive decay of rock, etc. Examples of 'background radiation' in a sentence background radiation He paused for a moment; benign satisfaction hummed like background radiation in the receiver. Edward Docx THE CALLIGRAPHER (2003) It was getting hard to distinguish the swarm trail from the background radiation. Michael Crichton PREY (2003)
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background radiation in British English