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- That comet is invisible to the unaided eye. 那颗彗星只用肉眼是看不到的。
- 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。
- cometary dynamics 彗星动力学
- If I had binoculars, I could see that comet clearly. 如果我有望远镜,我就可以清楚地看见那颗彗星。
- The comet's ice, heated by the sun, rapidly and spectacular sublimate to gas. 彗星上的冰块在太阳热的作用下迅速而壮观地升华成气体。
- The central portion of the head of a comet. 彗核彗星头部的中心部分
- Why else might the comet have come undone? 是什么导致了慧星的灭亡?
- Halley's comet calls on the earth every 76 years. 哈雷彗星每76年造访地球一次。
- The dynamics of natural and human-made bodies in outer space. 航天动力学,天体动力学将天然及人工天体推入外层空间的动力学
- The comet passed by in the twinkling of an eye. 俯仰之间,流星闪过。
- Halley's comet visits the Earth once in 76 years. 哈雷彗星每七十六年经过地球一次。
- 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。
- So the cometary dust work had to take priority. 也因此彗星尘埃的工作获得了优先。
- I can hardly wait to see the new comet. 我急不可待地要见到新彗星的出现。
- The comet will appear in the southern sky. 彗星出现在南方的天空。
- It can also perform molecular dynamics simulations. 它能也执行分子的动力学模拟。
- He made a contribution of inestimable importance in the field of dynamics. 他在力学领域作出了一项无可估量的贡献。
- 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。
- The simulation ofNC m illing is a dynam ic analogy. 数控铣削仿真是对铣削加工的动态模拟方法。