英语词汇“circumhorizontal arc”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	circumhorizontal arc
释义	circumhorizontal arc circumhorizontal arc [¦sər·kəm‚här·ə′zänt·əl ′ärk] (optics) A halo phenomenon consisting of a colored arc, red on its upper margin; it extends for about 90° parallel to the horizon and lies about 46° below the sun.
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