Comets are a tougher act.
彗星是个更难处理的玩意。
element abundances of comets
彗星元素丰度
He's found more than 138 comets.
他发现了超过140个彗星。
Comets are very much like asteroids.
彗星跟小行星十分相似
DID COMETS DELIVER LIFE'S COMPONENTS ?
慧星是否传递生命的构成物?
Comets are usually made of ice and rock.
彗星通常是由岩石和冰构成的。
Explore an asteroids and comets interactive.
探索一颗小行星和彗星们的相互作用。
Mitigation of Hazardous Comets and Asteroids
减缓小行星与彗星对地球的危险撞击
But he found 138 comets without a telescope.
他发现的140颗彗星并没有用望远镜
The earth crosses the tracks of certain comets.
地球穿过某些彗星的运行轨道。
Stellar passings can perturb the orbits of comets.
行星的运行会使彗星的轨道发生扰动。
Comets are big, dirty snowballs that orbit our sun.
就不得不提到彗星了。
We were tired with the Comets for the championship.
在争夺冠军上，我们和慧星队积分相同。
We need a dedicated observatory that looks for comets.
我们需要有个专人看管的天文台专门寻找彗星。
Comets travel fastest when they are closest to the sun.
当彗星最接近太阳时，它们运行得最快。
He's found so many comets, they named a comet after him.
他发现了如此之多的彗星，有一颗彗星就以他命名。
Comets, for example, were viewed as omens of misfortune.
例如，慧星是作为灾难的预兆而被观察。
The Historical Course for Human Being to Explore the Comets
人类探索彗星的历程
The molecules of the comets gaseous coma fluoresce in sunlight.
彗星气态彗发里的分子被阳光激发而发光。
Lulin, like all comets, isa clump of frozen gases mixed with dust.
鹿林彗星和其他彗星一样，是一堆冰气体和尘埃组成。
In ancient times, novas and comets were always taken as bad omens.
古时候，人们经常认为客星临近地球是一种不吉祥的兆头。
Today, astronomers espouse the theory that comets spawn the swarms.
如今，天文学家们支持彗星产生了流星团的说法。
If checked, the comets near the Sun will have name labels attached.
勾选此选项的话，接近太阳的慧星会附加上名称标签。
The tails of comets provide viewers with spectacular sights at night.
彗星的尾巴在夜空中堪称奇观。
Asteroids and comets in nearby space pose a constant threat to our planet.
近地太空中的小行星和彗星们持续威胁着我们的星球。
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