名词短语
中文翻译：月半长半日
同义词：
['mean solar', 'mean sidereal', 'mean ecliptic', 'mean sidereal day']
例句：
-
1. The moon's phases are a means of telling time on Earth.
月亮的相位是地球上计时的一种方式。
-
2. The mean lunar semi-diurnal is about 14.7 hours long.
平均月半长半日大约持续14.7小时。
-
3. This means that the earth and the moon are not always in perfect alignment.
这意味着地球和月亮并不总是完美对齐。