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


  • Comet - Wikipedia
    Comets have been observed and recorded since ancient times by many cultures and religions Comets usually have highly eccentric elliptical orbits, and they have a wide range of orbital periods, ranging from several years to potentially several millions of years
  • Comets - NASA
    Comets are cosmic snowballs of frozen gases, rock, and dust that orbit the Sun When frozen, they are the size of a small town When a comet's orbit brings it close to the Sun, it heats up and spews dust and gases into a giant glowing head larger than most planets
  • What Is a Comet? | NASA Space Place – NASA Science for Kids
    Comets are large objects made of dust and ice that orbit the Sun Best known for their long, streaming tails, these ancient objects are leftovers from the formation of the solar system 4 6 billion years ago Comets, such as the comet ISON pictured here, are thought to hold material from the time when the Sun and planets were forming
  • Comets: Everything you need to know | Space
    Comets are defined as icy bodies of frozen gases, rocks and dust left over from the formation of the solar system about 4 6 billion years ago They orbit the sun in highly elliptical
  • cometa - Wiktionary, the free dictionary
    cometa in Luciano Canepari, Dizionario di Pronuncia Italiana (DiPI) cometa in Aldo Gabrielli, Grandi Dizionario Italiano (Hoepli) cometa in Dizionario Italiano Olivetti, Olivetti Media Communication; cometa in Treccani it – Vocabolario Treccani on line, Istituto dell'Enciclopedia Italiana
  • Comets - NSSDCA
    Mysterious Sedna - Astronomers have discovered a mysterious planet-like body in the distant reaches of the solar system - NASA Science News, 15 March 2004
  • Comets: News, features and articles | Live Science
    Comets are "snowballs" of ice and dust that formed during the birth of our solar system and have orbited the sun since Live Science brings you the latest comet news, features and articles as
  • View Rosetta’s comet - European Space Agency
    This interactive tool allows you to view Rosetta’s target comet (67P C-G) from all angles You can zoom in and out, pan across, and rotate the comet to explore its surface as seen by Rosetta’s navigation camera, NAVCAM At any stage you can return to the default setting by clicking on Reset View
  • APOD: 2021 September 10 - Rosettas Comet in View
    About 5 years ago, this comet's 4 kilometer spanning, double-lobed nucleus became the final resting place of robots from planet Earth, following the completion of the historic Rosetta mission to the comet
  • Comet - latest research news and features - Phys. org
    Comet nuclei are themselves loose collections of ice, dust and small rocky particles, ranging from a few kilometers to tens of kilometers across All the latest science news on comet from





中文字典-英文字典  2005-2009