英语词汇“Zenithal hourly rate”的读音、翻译、释义、用法及例句-语文网

词汇	Zenithal hourly rate
释义	Zenithal hourly rate phr. 流星天顶小时率 (在可以看到6.5等星的无云夜空, 当流星雨的辐射点位於正天顶时, 每小时出现的流星数目)
随便看	watchdog watchdog timer -watcher watcher watchet watch fire watch for watchful watchfully watchfulness watch glass -watching watching brief watch list watchmaker watchmaking watchman watchman charge watch night watch one's step watch one's time Watch out watch out watch out for watch over

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