音标:['nebjulә] ;
n. 星云, 角膜云翳
[医] 薄翳; 角膜翳, 角膜云翳; 喷雾剂
n. a medicinal liquid preparation intended for use in an atomizer
n. cloudiness of the urine
n. an immense cloud of gas (mainly hydrogen) and dust in interstellar space
词型变化:名词复数形式 : nebulae
考试类型:[托福]
词性分布:
名词100%

nebula的用法和样例:

例句

用作名词(n.)
  1. Fine dust in the nebula reflects the light.星云中细致的尘埃反射了星光。
  2. You can see nebulae in the clear summer sky.在晴朗的夏夜可以看到天上的星云。

词汇搭配

  • ring nebula环状星云
  • spiral nebula[天]螺旋星云...
  • radio nebula射电星云
  • planetary nebula行星状星云
  • anagalactic nebula河外星云
  • galactic nebula[天]银河星云...
  • dark nebula暗星云
  • extragalactic nebula河外星云
  • network nebula网状星云
  • solar nebula太阳星云
  • corneal nebula角膜云翳
  • diffuse nebula弥漫星云 [Lati...
  • crab nebula蟹状星云

This is Scientific Americans 60-Second Science. Im Karen Hopkin. This will just take a minute. If youve ever wondered where the Earth came from, the answer, it seems, is blowin in the windthe solar wind. Or so say scientists who, after examining sola

发表于:2019-01-08 / 阅读(63) / 评论(0) 分类 Scientific American(七)月

反射星云是靠反射附近恒星的光线而发光的,呈蓝色。反射星云的光度较暗弱,较容易观测到的例子是围绕着金牛座M45七姊妹星团的反射星云,在透明度高及无月的晚上,利用望远镜便可看到

发表于:2019-01-08 / 阅读(181) / 评论(0) 分类 托福英语

The Aeneid by Virgil 《埃涅阿斯纪》维吉尔 Mark first read the Aeneid while he was studying Latin in high school, and he recountedthe story of Aeneass quest and his desire to build a city that, he said, quoting the text in English, knows no

发表于:2019-01-17 / 阅读(43) / 评论(0) 分类 阅读空间

The Aeneid by Virgil 《埃涅阿斯纪》维吉尔 Mark first read the Aeneid while he was studying Latin in high school, and he recounted the story of Aeneass quest and his desire to build a city that, he said, quoting the text in English, knows no

发表于:2019-02-01 / 阅读(31) / 评论(0) 分类 阅读空间

How old is the Earth? 地球的年龄有多大? Well, by counting the number of isotopes in a sample of rock that's undergone radioactive decay, 通过对岩石样品中正经历着放射衰变的同位素计数, geologists have estimated the Ear

发表于:2019-02-13 / 阅读(40) / 评论(0) 分类 TED演讲教育篇

It looks like a hand of God reaching out into the cosmos, but NASA says the display is caused by a young and powerful pulsar. Taken by NASA's Chandra X-ray observatory from it's orbiting 360 miles above the Earth, the recently released photo of Pulsa

发表于:2019-02-16 / 阅读(75) / 评论(0) 分类 实用英语