1.The apparent motion could well be caused by an energetic rotating beam sweeping across the nebular material.
这种外观运动可能是由高能回旋射束扫过了星云物质后造成。
2.Within the Iris, dusty nebular material surrounds a massive, hot, young star in its formative years.
在彩虹星云内，尘埃状的星云物质围绕在大质量，炽热新星周围，这颗恒星正处于形成过程中。
3.But, formed within the nebula, that cluster's young, massive stars ultimately power the pervasive nebular glow.
但是，诞生于星云内的年轻大质量恒星最终激发了星云内到处弥漫的光和热。
4.The magnitude of the turbulence then follows directly from the observed line with if the nebular gas temperature is known.
如果已知星云气体的温度，则湍流的大小可直接从观测的谱线宽度得出。
5.Look for a small nebular patch north-east of bright star Deneb in the constellation of Cygnus.
从天鹅座中的明亮恒星天津四往东北方向寻找，就能找到这一小片星云状光斑！
6.Friends, I repeat: true democracy should ever be contempered with due regard for the Newtonian hypothesis of nebular ratiocination.
朋友们，我再次重申：真正的民主并不逊色于牛顿的宇宙假说。
7.Winds and intense radiation from hot, young, luminous stars in N44 excite and sculpt filaments and streamers of the glowing nebular gas.
从N44内炽热的年轻亮星发出的恒星风和强辐射，激发并雕塑了炽热星云气体的暗条和流线。
8.The electrons eventually recombine with the atoms to produce the visible nebular glow.
而最终电子会与原子再次结合，产生可见的星云光芒。
9.Within the Iris, dusty nebular material surrounds a hot, young star.
在彩虹星云中，星云尘埃物质围绕着一颗炙热的年轻恒星。
10.Ultraviolet radiation from the hot star powers the nebular glow.
从炽热恒星放射出的紫外线激发了星云，并使它发光发热。