英文字典中文字典


英文字典中文字典51ZiDian.com



中文字典辞典   英文字典 a   b   c   d   e   f   g   h   i   j   k   l   m   n   o   p   q   r   s   t   u   v   w   x   y   z       







请输入英文单字，中文词皆可：


请选择你想看的字典辞典：
单词字典翻译
nonspherical查看　nonspherical　在百度字典中的解释百度英翻中〔查看〕
nonspherical查看　nonspherical　在Google字典中的解释Google英翻中〔查看〕
nonspherical查看　nonspherical　在Yahoo字典中的解释Yahoo英翻中〔查看〕

安装中文字典英文字典查询工具!


中文字典英文字典工具:
选择颜色:
输入中英文单字

































































英文字典中文字典相关资料:


  • What Are Black Holes? - NASA
    A black hole is an astronomical object with a gravitational pull so strong that nothing, not even light, can escape it A black hole’s “surface,” called its event horizon, defines the boundary where the velocity needed to escape exceeds the speed of light, which is the speed limit of the cosmos
  • Black hole | Definition, Formation, Types, Pictures, Facts | Britannica
    Black hole, cosmic body of extremely intense gravity from which nothing, not even light, can escape It can be formed by the death of a massive star wherein its core gravitationally collapses inward upon itself, compressing to a point of zero volume and infinite density called the singularity
  • Black hole - Wikipedia
    The first black hole known was Cygnus X-1, identified by several researchers independently in 1971 [8][9] Black holes typically form when massive stars collapse at the end of their life cycle After a black hole has formed, it can grow by absorbing mass from its surroundings
  • What is a black hole? | University of Chicago News
    Black holes fascinate both the public and scientists—they push the limits of our understanding about matter, space and time Scientists at the University of Chicago and across the world have made many discoveries about our universe with the help of black holes, but there’s a lot we still don’t know about these extraordinary cosmic phenomena
  • What are Black Holes? Detailed Explanation - Physics-Astronomy
    Black holes, regions in space with gravitational forces so strong that nothing can escape, have intrigued scientists since their prediction in Einstein’s theory of relativity This article explores their history, theories, and the scientists who have studied them
  • Black holes — Everything you need to know | Space
    Black holes are real — and they're some of the most mysterious objects in space Discover what they are, how they form, and why they captivate scientists
  • How do black holes form? - Astronomy Magazine
    Some black holes form when a massive star collapses into itself But many mysteries still remain around these strange objects This artist’s concept shows a black hole surrounded by a
  • Black Holes: How they form and what do they appear like
    Black holes are windows into the universe’s most profound mysteries, from their primordial origins to the supermassive giants at the centre of galaxies By investigating their origins and appearance, we have learned much about black holes
  • Black hole - Simple English Wikipedia, the free encyclopedia
    Even though black holes are invisible to us, scientists can still find them They look at how they affect matter and light near them When matter falls toward a black hole, it can form a spinning disk called an accretion disk Friction in the disk heats it up This makes it glow very brightly
  • Black Hole 101 - Education
    At the center of our galaxy, a supermassive black hole churns Learn about the types of black holes, how they form, and how scientists discovered these invisible, yet extraordinary objects in our universe





中文字典-英文字典  2005-2009