| 词汇 | asteroid |
| 释义 | asteroid noun[ C ] uk /ˈæs.tər.ɔɪd/ us /ˈæs.tə.rɔɪd/ one of many large rocks that circle the sun小行星 elladoro/iStock/Getty Images Plus/GettyImages Astronomy albedo Andromeda Aquarius Aries astral galaxy Gemini geostationary geosynchronous gibbous observatory orbit orbital Orion penumbra substellar sunspot supergiant supermassive supermoon A one-kilometer wide asteroid could hold hundreds of billions of dollars worth of these minerals. And on the asteroid Eros, there is more silver, gold, and aluminum than could ever be dug from the earth. Asteroids contain minerals, such as nickel, cobalt, and even platinum. The Outer Space Treaty covers the Moon, asteroids, and everything else in outer space. They want to mine asteroids. Thousands of asteroids pass near Earth every year, and scientists believe those asteroids could be very valuable. To mine an asteroid, you must take everything you need with you into space: equipment, people, food, and water. asteroid | American Dictionaryasteroid noun[ C ] us/ˈæs·təˌrɔɪd/ earth science an object like a very large rock that goes around the sun like a planet: Scientists are hoping an asteroid will clue them in about early life on earth. Examples of asteroidasteroid The mechanical energy administered to a planetary surface by the impact of a comet or asteroid is another source of deformation. Once this is achieved, a new level is reached, and another random amount of large asteroids appears. The asteroids, meteoroids and apparently all comets originated in the explosion of planets (or moons). Dynamical chemical and isotopic evidence regarding the formation locations of asteroids and meteorites. The asteroid belt is represented visually by clouds of space debris - percussive sounds in the music. The microbial payloads can be captured in asteroids where they may multiply and disperse. Similar solutions trapped in asteroids during aqueous alteration, and in meteorites on aqueous planets, can form complex biomolecules, including vesicle-forming membranes. Impacts by comets and asteroids with rocky planets are known to displace large masses of material. Imagine that you are traveling in a spaceship and have learned that there is a mineral-rich asteroid heading your way. These would be easy to identify because of their tangential touchdown onto the asteroid, resulting in considerable rolling from their orbital momentum. In these cases, the nonhuman comes in the form of a rogue comet or asteroid, shattering the stability of the human world. In addition, it is smack in the middle of a mineral-rich asteroid path, and has already benefited from many mineral-rich asteroids. The jumps take place in an apparently chaotic fashion and lead to random walks across the asteroid belt. Other discoveries have led to the conclusion that several percent of all asteroids have satellites large enough to be discovered remotely. In the former case, comets are rocky asteroids surrounded by a debris cloud. 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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