| 词汇 | comet |
| 释义 | comet noun[ C ] uk /ˈkɒm.ɪt/ us /ˈkɑː.mɪt/ an object that moves around the sun, usually at a great distance from it, that is seen on rare occasions from the earth as a bright line in the sky彗星 Ian McKinnell/Photographer's Choice/GettyImages Astronomy albedo Andromeda Aquarius Aries asteroid galaxy Gemini geostationary geosynchronous gibbous observatory orbit orbital Orion penumbra substellar sunspot supergiant supermassive supermoon An opportunity may thus be presented of determining the mass of one of the largest comets on record, which may not again occur. Did not God do this very thing when he permitted the comet to strike the earth? However, the Church of England still embraced the idea that comets and eclipses were evidence of God's wrath. The comet will visit Mars first, and proceed to Mercury, Jupiter, Venus, and Saturn. The plague was thought to have been announced by a comet. comet | American Dictionarycomet noun[ C ] us/ˈkɑm·ɪt/ earth science a body of rock and ice that travels around the sun and that, as it nears the sun, develops a long tail of small pieces that can be seen Examples of cometcomet They would be objects of outstanding size, a new family of giant comets or small planets, in a remote part of the solar system. But they are assuming these micro-organisms came from a comet when no comet has been observed. There have been several missions to comets over the past 20 years. Once life has been seeded within a planet or comet it will grow at an exponential rate, checked only by the availability of sufficient nutrients. He also wrote on the forecasting power of comets, again a topic where religious belief was, or could be, involved. That might stimulate changes in organization that would make dealing with non-nuclear disasters, from comet-strikes and epidemics to catastrophic storms, easier. It will rendezvous with the comet in 2014 and land a small probe on the surface. It has become increasingly appreciated that, in addition to their cargo of ice and dust, comets also contain a large amount of organic material. Anyone working with the published new comet data could arrive at the same conclusion. In the meantime, evidence for comet satellites was mounting as well. As a consequence, no clustering can persist into the next revolution for these comets. The test of which explanation is better involves the velocity of the fragment comets relative to the original comet from which they seemed to split. It is a historical fact that the comet appeared in the spring of 1066. And while comets may have played a vital role in the origin of life, conversely they may also have been inimical to its development. At the end of the cycle and processing, it is incorporated into comets and meteorites. These examples are from corpora and from sources on the web. Any opinions in the examples do not represent the opinion of the Cambridge Dictionary editors or of Cambridge University Press or its licensors. |
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