星云的英文：
nebula

參考例句：
  • The element hydrogen comprises 90% of the matter in gaseous nebulae
    元素氫占氣體星云物質(zhì)的90%。
  • galactic nebulas are masses of diffuse material within our galaxy
    銀河星云是我們星系中的一團團彌散物。
  • For the Galaxy and the andromeda nubula, they do not form a pair of galaxies completely isolated from all others
    對銀河系和仙女座星云來說，它們并不構(gòu)成與所有其他星系完全孤立的一對星系。
  • These sources are generally viewed in projection against radio nebulae representing the remnants of supernova outbursts
    這類源一般都投影在超星爆發(fā)殘骸的射電星云上。
  • The spiral nebulae are impressive objects.
    旋渦星云是迷人的天體。
  • The spiral nebulae are impressive objects
    旋渦星云是迷人的天體。
  • You can see nebulae in the clear summer sky
    在晴朗的夏夜可以看到天上的星云。
  • The element hydrogen comprises 90% of the matter in gaseous nebulae.
    元素氫占氣體星云物質(zhì)的90%。
  • The remnant nebular gas pervades the interplanetary space
    星云的殘余氣體充斥星際空間。
  • Good spectra of the spiral nebulas are difficult to obtain because of their extreme faintness
    旋渦星云因為非常暗，難以得到它們的清晰的光譜。
nebula是什么意思：
n. 星云,云翳
  • The spiral nebulae are impressive objects.
    旋渦星云是迷人的天體。
  • The element hydrogen comprises 90% of the matter in gaseous nebulae
    元素氫占氣體星云物質(zhì)的90%。
  • The element hydrogen comprises 90% of the matter in gaseous nebulae.
    元素氫占氣體星云物質(zhì)的90%。
  • galactic nebulas are masses of diffuse material within our galaxy
    銀河星云是我們星系中的一團團彌散物。
  • Good spectra of the spiral nebulas are difficult to obtain because of their extreme faintness
    旋渦星云因為非常暗，難以得到它們的清晰的光譜。

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