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
Crose查看　Crose　在百度字典中的解释百度英翻中〔查看〕
Crose查看　Crose　在Google字典中的解释Google英翻中〔查看〕
Crose查看　Crose　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:


  • NEO Earth Close Approaches - NASA
    NASA's Near-Earth Object (NEO) web-site Data related to Earth impact risk, close-approaches, and much more
  • Near-Earth object - Wikipedia
    When a near-Earth object impacts Earth, objects up to a few tens of metres across ordinarily explode in the upper atmosphere (most of them harmlessly), with most or all of the solids vaporized and only small amounts of meteorites arriving to the Earth surface
  • NEO Close Approaches - TheSkyLive
    This 3D visualization shows the orbits and the current positions of all the Near-Earth Objects that will be passing close to Earth between now and the next 180 days
  • Near-Earth Object Program - NASA
    Near-Earth Objects, or NEOs, are comets and asteroids that have been nudged by the gravitational attraction of nearby planets into orbits that allow them to enter Earth’s neighborhood
  • Close Approaches List - NEO
    Every month dozens of NEAs come within 0 05 au of Earth The following table presents the list of these forthcoming and recent close approaches, with details concerning the encounter circumstances
  • Near-Earth Objects - UNOOSA
    Near-Earth Objects, or NEOs, represent potentially catastrophic threats to our planet A near-Earth object is an asteroid or comet which passes close to the Earth's orbit
  • Near-Earth Objects - NASA
    Near-Earth Objects Visit CNEOS (the Center for Near-Earth Object Studies) website for more information related to NEOs NEOs are a broad category of small-bodies defined as those with a trajectory that can come within 1 3 au of the Sun Since the Earth orbits at approximately 1 au, such objects can in principle come within 0 3 au of Earth
  • Near-Earth Observations (NEO) Program - NASA Science
    The Near-Earth Object (NEO) Observations Program is a key element of NASA’s Planetary Defense Program, funding efforts to search for undiscovered NEOs using observatories around the world, calculate and refine NEO orbits, determine NEO physical properties and composition, and study NEO deflection and mitigation technologies
  • Eyes on Asteroids - NASA JPL - NASAs Eyes
    Explore the 3D world of Asteroids, Comets and NEOs Learn about past and future missions, tracking and predicting orbits, and close approaches to Earth
  • NASA Tracking Three Asteroids Approaching Earth - Newsweek
    The orbits of asteroids bring them within 120 million miles of the sun Most near-Earth objects (NEOs) are asteroids that range in size from about 10 feet to nearly 25 miles across





中文字典-英文字典  2005-2009