meteoroid造句
例句与造句
- Moving swiftly through the atmosphere, meteoroids are heated rapidly by friction .
流星体在快速穿过大气层时，因磨擦而迅速加热。 - If the meteoroids are bunched together, the number of meteors seen varies from year to year .
如果流星体聚集在一起，则每年看到的流星数都不一样。 - Others became asteroids , comets and smaller meteoroids
其他人成为了小行星彗星和更小的陨石。 - Meteoroids are small particles in space with size similar to grains of sand
.宇宙充塞著沙粒大小的流星体。 - Performance analysis for spacecraft shield structures against meteoroid and space debris
航天器微流星体及空间碎片防护结构性能分析 - It's difficult to find meteoroid in a sentence. 用meteoroid造句挺难的
- Countless meteoroids will be sent hurtling into the earth ' s atmosphere at 71 kilometres a second
无数流星将以每秒71公里的速度划破长空。 - Life - bearing meteoroids and dust particles would be exposed to the vacuum of space , extremes in temperature and several different kinds of radiation
带有生命的流星体与尘粒，还会暴露在宇宙的真空、极端的温度与数种不同的辐射之下。 - Most of the meteoroids of the leonid meteor stream concentrate in an elongated thin ribbon - like region . the stream orbits around the sun in an elliptical orbit with a period of about 33 years
狮子座流星群聚集于一条狭长的区域内，以极为椭圆形的轨道环绕太阳运行，周期约为 - With the sun locating at the centre , our solar system is consisted of the eight planets and their satellites , dwarf planets , asteroids , comets , meteoroid and interplanetary matter
我们的太阳系，是以太阳为中心，由八大行星及其卫星矮行星小行星彗星流星体和行星际物质所构成的天体系统。 - A " meteor shower " occurs when our home planet encounters a relatively dense region of meteoroids in space . an unusually large number of meteors can then be seen streaming from a certain point in the sky known as the " radiant "
许多流星像从星空中某一点称为辐射点向外散射而出，其实流星群飞向地球时大致是平行的，辐射点是视觉上的透视象。 - And most of them were bright fireballs that shined below magnitude 0 . many people noticed the red head and green trail of the meteor . colour of the meteor is an important clue to understand the composition of the meteoroid
当中为数很多都是0等以下的火流星，而且还带有颜色，不少人都看到流星红头绿尾的有趣现象，这为我们追查流星体物质的成分留下了重要的线索。 - There float in the vast reaches of our solar system swarms of sand bits and dust clods known as meteoroids . when these " space debris " tear into the earth s atmosphere , air friction causes them to burn , forming momentary bright streaks that blaze across the sky
太阳系内充满著称为流星体的尘埃和固体块，当这些太空渣滓闯进地球的范围时，便会和大气摩擦而燃烧，成为我们日常所见的流星。 - When a meteoroid with a speed of tens of kilometers per second hits the earth s atmosphere , the friction with air will heat up the meteoroid . the high temperature will cause the surrounding atmosphere to glow , creating a bright streak of light called a
当流星体以每秒数十公里的速度进入地球大气层，由于与空气摩擦而产生高热，高温令流星体四周空气发光，形成一条划破天际的光迹，我们称之为 - Our solar system consists of an average star we call the sun , the planets mercury , venus , earth , mars , jupiter , saturn , uranus , neptune , and pluto and , the satellites of the planets ; numerous comets asteroids , and meteoroids ; and the interplanetary medium
我们太阳系由普通恒星? ?太阳、九大行星（水星、金星、地球、火星、木星、土星、天王星、海王星和冥王星）和各大行星的卫星、数量众多的彗星、小行星、流星以及行星间的介质组成。 - In 2003 , peak activity is expected to occur on 18 november . because meteoroids are unevenly distributed along their paths around the sun and gravitational pull from nearby planets may perturb their orbits , the time of peak activity and the number of meteors cannot be predicted exactly
由于流星体是不均匀地分布在环绕太阳的轨迹上，往往受行星引力的影响而令轨道产生变化，因此要准确地预测流星雨高峰值出现的时间及流星数目是很困难的。
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