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- The central portion of the head of a comet. 彗核彗星头部的中心部分
- A comet is at perihelion when it is closest (=very close) to the sun. 彗星最接近太阳时,它就是在近日点。
- In that way, Pluto acts like a comet. 也就是说,冥王星的行为像一个彗星。
- Some people feel that this light was a comet. 一些人认为这种光是一种慧星。
- The flames burned brightly like a comet's tail. 火焰燃烧得十分明亮,好像彗星的尾巴。
- Recently we have discovered a comet. 最近我们发现了。
- Orbits of a comet may be open or close. 粗略来说,彗星可以开放或封闭式轨道绕日运行。
- With a comet like him, nothing can be accomplished. 有他这颗扫帚星,什么事情都办不成。
- Herschel thought it might be a comet. 赫歇耳想,它也许是一颗彗星,
- Recently they have discovered a comet. 最近他们发现了一颗彗星。
- For a comet, breaking up is not so hard to do. 要破碎慧星不是一件很难做到的事。
- The tail of a comet, a kite, an aircraft, a procession. 彗星、风筝、飞机、行列的尾部。
- The nebulous,luminescent cloud containing the nucleus and constituting the major portion of the head of a comet. 彗发星云状的发光云体包括彗核、彗星头部的重要部分
- The nebulous, luminescent cloud containing the nucleus and constituting the major portion of the head of a comet. 彗发星云状的发光云体包括彗核、彗星头部的重要部分
- A comet is at perihelion when it is closest to the sun. 彗星最接近太阳时,它就是在近日点。
- This nucleus has captured the slow-moving neutrons; The star captured a comet. 这核子已经俘获慢运动的中子;这颗恒星俘获了一颗慧星。
- What happened the games began, a comet appeared in the sky. 在比赛开始后,天空出现了一刻彗星。
- But who takes off his eyes from a comet when that breaks out? 可是当彗星陨落,谁会忍心掉首不顾?
- The debris possibly came from a comet or asteroid that hit Jupiter. 这个碎片可能来自慧星或小行星对木星的撞击。
- Deep Impact is on its way to examine a comet called 103P Hartley 2. 深度撞击被称为103P哈特利2途中,研究彗星。