英语词汇“exosphere”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	exosphere
释义	exosphere —exospherical /ek'seuh sfer"i keuhl, -sfear"-/, exospheric, adj. /ek"soh sfear'/, n. the highest region of the atmosphere, where the air density is so low that a fast-moving air molecule is more than 50 percent likely to escape from the atmosphere instead of hitting other molecules. [1950-55; EXO- + -SPHERE]
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