常見例句雙語例句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）是個(gè)氣體發(fā)射星云的典型例子，它是由于類似太陽的恒星耗盡了其核心的核燃料而產(chǎn)生的。 返回 gaseous emission nebula