英语词汇sidereal day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

单词	sidereal day
释义	sidereal day 简明释义 n.[天] 恒星日网络释义 1 [天]?恒星日一个恒星日（sidereal day）是指地球自转一周的用时，地球的恒星日为23 小时56 分，比平时所说的一日24 小时略少一点。 2 ?自转周期 ... 逃逸速度 (escape velocity) 自转周期 (sidereal day) 赤道自转速度 (rotational velocity) ... 短语 1 fixed sidereal day 固定恒星日 2 apparent sidereal day 视恒星日 3 a sidereal day 恒星日双语例句 1 A sidereal day is about 4 minutes shorter than a solar day. 一个恒星日比一个太阳日大约短4分钟。
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