| 1. | The photo at the right shows comet west , which visited the inner solar system in 1976
右图是在1976年探访内太阳系的威斯彗星。 |
| 2. | That is why it is the most popular power source for satellites or spacecraft working in the inner solar system
太空船也是这样不断在引力的作用下向下跌，因而出现了无重状态。 |
| 3. | Other stardust samples confirm that particles formed in the inner solar system had a part in the formation of comets
星尘的其他样品巩固了形成于太阳系内部的颗粒是构成彗星的一部分这一事实。 |
| 4. | So there might be more of them in the kuiper belt ( where comets come from ) as compared with the inner solar system near the sun
所以或许相比于太阳系内部，它们在“柯伊伯带” （彗星形成之地）比较多。 |
| 5. | That rare material , sometimes seen in meteorites that have roamed the inner solar system , had never before been detected in a comet
有时可以在内层太阳系遨游的陨星中发现这些稀有的物质，而此前从未在彗星中发现过它们。 |
| 6. | Among the stardust particles , the investigators found that the ratio of oxygen isotopes was similar to that found in meteorites formed in the inner solar system
调查人员发现在星尘样品中氧同位素的比例与形成与太阳系中心的陨石类似。 |
| 7. | The inner solar system is home to an estimated 1 , 000 to 1 , 500 asteroids a kilometer or greater in width , with perhaps a million rocks 50 meters and larger
太阳系中有1000 ~ 1500颗直径超过一公里的小行星，及上百万块直径超过50公尺的岩石。 |
| 8. | Historically , these visitors to the inner solar system provided a dazzling sight - brilliant , with long , narrow tails visible even in twilight
历史上，这些内太阳系的过客曾经向人们展示了惊艳的景观? ?细长的彗尾与明亮的彗核辉映着黄昏的天空。 |
| 9. | Explanation : this frame from a spectacular time lapse movie shows comet mcnaught - the great comet of 2007 - sweeping through the inner solar system
说明：这张影像是一部精彩时序电影的定格，主题是2007年大彗星- -麦克诺飞掠过太阳系内围的情景。 |
| 10. | " the heavy bombardment of the inner planets by comets may have brought less prebiotic material to the inner solar system than we thought , " said boehnhardt
贝哈特说： “由慧星构成的内行星的剧烈爆炸，会比我们想象的要少的生命起源物质来到太阳系内部。 ” |
