“circumhorizontal arc”的概念、定义、翻译、参考文献-科学参考

单词	circumhorizontal arc
释义	circumhorizontal arc [¦sǝr·kǝm´här·ǝ`zänt·ǝl `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.
随便看	air base air battery air belt air-bend die air bind airblast airblast circuit breaker airblasting air bleeder air-blower noise air-blown asphalt airboat airborne airborne alert airborne assault weapon airborne collision avoidance system airborne collision warning system airborne command post airborne control system airborne detector airborne early warning airborne early warning and control airborne early-warning station airborne electronic survey control airborne intercept radar

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