Examples of using Comets in English and their translations into Chinese
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It has never been directly observed, but its existence is predicted based on mathematical models and observations of comets that likely originate there.
We live on the inner surface of the shell, and inside the hollow are the sun, moon, stars, planets, and comets.
我们住在蛋壳内层的表面，在空心中有太阳、月亮、星星、行星和彗星。These currently include most of the Solar System asteroids, most Trans-Neptunian Objects(TNOs), comets, and other small bodies.
目前这些包括大多数的太阳系小行星，大多数的海外天体（TNOs），彗星，和其他小天体。Some scientists believe that comets brought to Earth the water and organic matter, which became the source of the origin of life.
科学家们认为，彗星的撞击为地球带来了水和有机分子，为生命的出现打下了基础。Astrobiologists have long wondered whether they could have been delivered to early Earth on the backs of comets or asteroids.
天体生物学家一直很好奇，它们是否曾从彗星或小行星上被传递至早期地球。In the Solar System, planets, asteroids, most comets and some pieces of space debris have approximately elliptical orbits around the Sun.
在太阳系，行星、小行星、多数的彗星、和一些太空垃圾的碎片都以接近椭圆的轨道环绕著太阳。Icy comets smashing into the planet seemed like natural donors, but many comets have water chemistry different from that of Earth's oceans.
撞入地球的带冰彗星看上去像天然的捐赠者，但很多彗星拥有不同于地球海洋的水化学。Astronomer Fred Whipple was the first to describe comets as dirty snowballs, or icy conglomerates of frozen gases and dust.
天文学家弗雷德·惠普尔（FredWhipple）是第一个将彗星描述成肮脏雪球的人，他声称彗星是由冰冻气体和尘埃组成的冰晶团。Like all comets, Wirtanen is a frozen 4-billion-year-old relic from the formation of the solar system.
与所有彗星一样，Wirtanen是太阳系形成以来冻结了40亿年的遗物。His reports indicated that these three Comets were actually the same Comet and predicted that the next sighting would be in 1758.
他得出结论，这三颗彗星实际上是同一颗彗星反复出现，并预测这颗彗星将在1758年再次出现。As a result, they believe that all comets might contain Earth-like water locked within their rocky bodies.
结果，他们相信所有彗星都可能包含锁定在岩石体内的类似地球的水。He concluded that these three comets were actually the same comet returning over and over again, and predicted the comet would come again in 1758.
他得出结论，这三颗彗星实际上是同一颗彗星反复出现，并预测这颗彗星将在1758年再次出现。We know comets are relatively fragile things, as in 1993 when comet Shoemaker-Levy 9 was discovered and its pieces linked to a flyby of Jupiter.
因为彗星是相当易碎的，在1993年时，科学家就曾发现苏梅克-列维9号彗星和它的碎片接连飞跃木星。Conventional theory holds that the gas giant should also dislodge comets from the inner Oort Cloud, but these have not been observed.
传统理论认为，气态巨行星也应当把彗星从奥尔特云中心地带驱逐出去，但到目前为止尚未观测到这一情况。Smaller members of our Solar System, including most comets and many asteroids, do not always move along the ecliptic plane.
我们的太阳系的较小成员,包括大多数的慧星和许多小行星,没有总是沿着黄道的飞机移动。Three comets appeared in the skies over Europe in 1618, giving rise to a debate about the nature of these celestial bodies.
年欧洲上空出现三颗彗星，引起了对这些天体性质的辩论。Has updated a solar paralax on supervision of asteroids, has discovered 3 comets, has found Neptune on the coordinates calculated by U. Leverje(1846).
修正了太阳视差，发现了3颗彗星，根据勒威耶计算的座标发现了海王星（1846）。That strongly suggests comets, rather than asteroids, caused the violent bombardment.
这有力地证明了是彗星--而不是小行星--造成了重大撞击。The Minor Planet Center(MPC) acts as a central clearing house for astrometric and photometric data on comets, asteroids and other bodies of the solar system.
小行星中心是一个彗星、小行星和太阳系其他天体天文和光度测量数据中央交换所。Researchers have found that some near-Earth asteroids are actually burned-out comets, most of which started out in the Kuiper Belt.
研究人员发现，一些近地小行星实践上是焚烧殆尽的彗星，它们中的大多数或许就起源于柯伊伯带。
