英语词汇“effective horizon”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	effective horizon
释义	effective horizon effective horizon [ə¦fek·tiv hə′rīz·ən] (communications) A horizon whose distance at a given height above sea level is the distance to the horizon of a fictitious earth, having a radius ⁴⁄₃ times the earth's true radius; used to estimate ranges of antennas, taking atmospheric refraction into account.
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