英语词汇astronomical second怎么读，是什么意思，单词翻译、读音、固定搭配用法和短语词组及例句-英汉双解词典

1
?天文秒
... 天体光度学 astronomical photometry 天文秒 astronomical second 天文{时间}标准 astronomical standard ...

1
A leap second is added in order to keep UTC within 0.9 seconds of observed astronomical time.
添加闰秒是为了将UTC保持在观察到的天文时间的0.9秒范围内。
2
The second was the first use of an astronomical telescope by Galileo Galilei.
另一个重大发现则是伽利略?加利雷首次使用天文望远镜。
3
The second asteroid belt lies at about 20 astronomical units from the star, or a position comparable to Uranus in our solar system.
第二个行星带距离它的恒星为20个天文单位，这相当于太阳系中天王星的位置。

单词	astronomical second
释义	astronomical second 简明释义天文秒网络释义 1 ?天文秒 ... 天体光度学 astronomical photometry 天文秒 astronomical second 天文{时间}标准 astronomical standard ... 双语例句 1 A leap second is added in order to keep UTC within 0.9 seconds of observed astronomical time. 添加闰秒是为了将UTC保持在观察到的天文时间的0.9秒范围内。 2 The second was the first use of an astronomical telescope by Galileo Galilei. 另一个重大发现则是伽利略?加利雷首次使用天文望远镜。 3 The second asteroid belt lies at about 20 astronomical units from the star, or a position comparable to Uranus in our solar system. 第二个行星带距离它的恒星为20个天文单位，这相当于太阳系中天王星的位置。
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