基本解释氣躰發射星雲英汉例句雙語例句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)是個氣躰發射星雲的典型例子,它是由於類似太陽的恒星耗盡了其核心的核燃料而産生的。gaseous emission nebula更多例句