Warning: file_put_contents(/www/wwwroot/ppbbu/62383.com/cache/7f7c84ae017a874e7cd4942c28e7f507.txt): failed to open stream: No space left on device in /www/wwwroot/ppbbu/62383.com/index.php on line 55 mean solar day英英字典_mean solar day剑桥英语解释_mean solar day柯林斯英文解释_流逝汉英词典
1. N the time between two successive passages of the mean sun across the meridian at noon. It is equal to 24 hours 3 minutes and 56.555 seconds of mean sidereal time 平均太陽日