Warning: file_put_contents(): Only 0 of 4905 bytes written, possibly out of free disk space in /www/wwwroot/ppbbu/62383.com/index.php on line 55 nautical twilight例句_nautical twilight英汉例句_nautical twilight双解例句_流逝汉英词典
The observer begins the telescope startup process around nautical twilight, preparing the telescope then adjusting the pointing and focus. 观测者大概在民用晨昏蒙影时开始启动望远镜， 然后将望远镜指向目标并调好焦距。