Warning: file_put_contents(/www/wwwroot/ppbbu/4cd.cn/cache/0d869746f1556c6372cb179926b0989f.txt): failed to open stream: No space left on device in /www/wwwroot/ppbbu/4cd.cn/index.php on line 55 space astronomical observation例句_space astronomical observation英汉例句_space astronomical observation双解例句_沉淀汉英词典
The uses, characteristics and working conditions of the observation instrument in space astronomical research scope were summarized. 概述了空間天文研究領域觀測儀器的用途、特性及工作環境。