nebula是什么意思_音标_用法_例句

简单释义：

n. 【天】星云；【医】角膜翳

网络 喷雾剂；云翳；角膜云翳

变形：

复数：nebulas  复数：nebulae  

完整释义：

n.

1.【天】星云
2.【医】角膜翳

例句：

1. Were the Tarantula Nebula at the distance of the Orion Nebula — a local star forming region — it would take up fully half the sky.
   假如狼蛛星云在猎户座星云——一个本地（银河系内）恒星形成区——的位置上，它将占据半个天空。

2. It is one of the best examples of a planetary nebula and a favorite target of amateur astronomers.
   它是行星状星云的最好范例之一，也是业余天文爱好者最喜欢观测的目标之一。

3. So most people, you know, kind of have no idea of the difference between like, an emission nebula and a planetary nebula.
   这和实际的频率和规模几乎是一样的。大多数人都分不清发射星云和环状星云之间的区别。

4. Also visible, near the bottom of the image, is ten light-year long pillar sometimes dubbed the Fairy of Eagle Nebula .
   此外，靠近影像底部有十根长度将近一光年的气柱，它们有时被戏称是老鹰星云的仙女。

5. 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.
   Messier27（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。

6. About 5 light-years long and a mere 800 light-years away, the Pencil Nebula is only a small part of the Vela supernova remnant.
   约5光年长，仅800光年远，铅笔星云是船帆座超新星残骸的一小部分。

7. Most scientists believe that the solar system formed from a Nebula of gas, dust and ices, that turned into a disk around the developing sun.
   大部分科学家认为太阳系是由包含气体、星尘和冰的星云构成，它们像圆盘一样围绕在膨胀的太阳周围。

8. l Nebula (plural nebulae) was the word once used for and fuzzy patch of light in the night sky.
   l星云这个名称，过去曾经用来泛指夜空中那些发亮的小块区域。