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：

haemophiliac    

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:


  • In Depth | Moons – NASA Solar System Exploration
    Of the terrestrial (rocky) planets of the inner solar system, neither Mercury nor Venus have any moons at all, Earth has one and Mars has its two small moons In the outer solar system, the gas giants Jupiter and Saturn and the ice giants Uranus and Neptune have dozens of moons
  • In Depth | Asteroids – NASA Solar System Exploration
    In Depth Introduction Asteroids, sometimes called minor planets, are rocky remnants left over from the early formation of our solar system about 4 6 billion years ago The current known asteroid count is: Most of this ancient space rubble can be found orbiting our Sun between Mars and Jupiter within the main asteroid belt
  • In Depth | Our Solar System – NASA Solar System Exploration
    Our solar system consists of our star, the Sun, and everything bound to it by gravity – the planets Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, and Neptune; dwarf planets such as Pluto; dozens of moons; and millions of asteroids, comets, and meteoroids Beyond our own solar system, there are more planets than stars in the night sky
  • Solar Power Technologies for Future Planetary Science Missions
    The NASA Planetary Science Division is considering a number of ambitious missions to various destinations in our solar system, including outer planets, inner planets, Mars and small bodies
  • Asteroids, Comets Meteors - NASA Solar System Exploration
    Asteroids and comets – and the meteors that sometimes come from them – are leftovers from the formation of our solar system 4 6 billion years ago
  • Solar System Ambassadors - NASA Solar System Exploration
    He loves to learn about spaceflight, astronomy, planetary science, and the history of science, and to share his knowledge with others through speaking and writing Our age will be remembered for centuries, for millennia, as the one that began to explore the Moon and planets with spacecraft We are all part of this adventure
  • Mars By the Numbers - NASA Solar System Exploration
    Mars is the fourth planet from the Sun, and the seventh largest It’s the only planet we know of inhabited entirely by robots
  • Moon Facts - NASA Science
    Earth's Moon records evidence of our solar system's history in the form of impact craters, cooled lava landforms, ancient ice deposits, and more
  • Planet Compare – NASA Solar System Exploration
    NASA’s real-time science encyclopedia of deep space exploration Our scientists and far-ranging robots explore the wild frontiers of our solar system
  • Titan: the Moon That Would Be a Planet
    • Introduction: Titan compared to moons and planets • Observations by the Cassini Huygens mission • Description of the Carbon cycle • Surface morphology geological implications





中文字典-英文字典  2005-2009