Warning: file_put_contents(/www/wwwroot/ppbbu/80125.cn/cache/34d48447f93534f72b87adaedbc3e3a3.txt): failed to open stream: No space left on device in /www/wwwroot/ppbbu/80125.cn/index.php on line 58 gaseous emission nebula例句_gaseous emission nebula英汉例句_gaseous emission nebula双解例句_食材铺反向词典
Messier 27 (M27) is an excellent example of a gaseous emission nebula created as a sun-like star runs out of nuclear fuel in its core. Messier 27（M27）是个气体发射星云的典型例子，它是由于类似太阳的恒星耗尽了其核心的核燃料而产生的。