Pandora 土卫十七(中英)
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Pandora is the fourth of Saturn1's known satellites:

  orbit: 141,700 km from Saturn

  diameter: 84 km (114 x 84 x 62)

  mass: 2.2e17 kg

  In Greek mythology2 Pandora was the first woman, bestowed3 upon humankind by Zeus as a punishment for Prometheus' theft of fire. Entrusted4 with a box containing all the ills that could plague people, she opened it out of curiosity and thereby5 released all the evils of human life; wife of Epimetheus.

  Discovered by Collins and others in 1980 from Voyager photos.

  Pandora is the outer shepherd satellite of the F ring. The image at right shows both Pandora, the faint F ring, Prometheus and part of the A ring. (Click the image for a much finer image from Cassini)

  Craters6 formed on this object by impacts appear to be covered by debris7, a process that probably happens rapidly in a geologic8 sense. The grooves9 and small ridges10 on Pandora suggest that fractures affect the overlying smooth material.

  Pandora 是土星已知卫星中距其第四近的一颗:

  公转轨道:距土星 141,700 千米

  卫星直径:84 千米(114×84×62)

  质量:2.2e17 千克

  在希腊神话中,潘多拉是由于普罗米修斯偷火种,被宙斯派来惩罚人类的第一个女人。她被要求保管一只盒子,里面装着所有能够危害人类的灾祸。她出于好奇找开了这个盒子,因此释放了所有人类生活中的罪恶。潘多拉是Epimetheus的妻子。

  这颗卫星于1980年被Collins和他的同伴从旅行者号的照片上发现。

  土卫十七是F光环外的牧羊卫星。从右边的图片上可看到土卫十七和不明显的F光环,土卫十六及A光环的部分。

  这颗卫星上的陨石坑比附近的土卫十六上的更大,土卫十七至少有两个直径大约30千米的大陨石坑。但是它没有长条形的山脉和峡谷。



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1 Saturn tsZy1     
n.农神,土星
参考例句:
  • Astronomers used to ask why only Saturn has rings.天文学家们过去一直感到奇怪,为什么只有土星有光环。
  • These comparisons suggested that Saturn is made of lighter materials.这些比较告诉我们,土星由较轻的物质构成。
2 mythology I6zzV     
n.神话,神话学,神话集
参考例句:
  • In Greek mythology,Zeus was the ruler of Gods and men.在希腊神话中,宙斯是众神和人类的统治者。
  • He is the hero of Greek mythology.他是希腊民间传说中的英雄。
3 bestowed 12e1d67c73811aa19bdfe3ae4a8c2c28     
赠给,授予( bestow的过去式和过去分词 )
参考例句:
  • It was a title bestowed upon him by the king. 那是国王赐给他的头衔。
  • He considered himself unworthy of the honour they had bestowed on him. 他认为自己不配得到大家赋予他的荣誉。
4 entrusted be9f0db83b06252a0a462773113f94fa     
v.委托,托付( entrust的过去式和过去分词 )
参考例句:
  • He entrusted the task to his nephew. 他把这任务托付给了他的侄儿。
  • She was entrusted with the direction of the project. 她受委托负责这项计划。 来自《简明英汉词典》
5 thereby Sokwv     
adv.因此,从而
参考例句:
  • I have never been to that city,,ereby I don't know much about it.我从未去过那座城市,因此对它不怎么熟悉。
  • He became a British citizen,thereby gaining the right to vote.他成了英国公民,因而得到了投票权。
6 craters 1f8461e3895b38f51c992255a1c86823     
n.火山口( crater的名词复数 );弹坑等
参考例句:
  • Small meteorites have left impact craters all over the planet's surface. 这个行星的表面布满了小块陨石留下的撞击坑。 来自《简明英汉词典》
  • The battlefield was full of craters made by exploding shells. 战场上布满弹坑。 来自《现代英汉综合大词典》
7 debris debris     
n.瓦砾堆,废墟,碎片
参考例句:
  • After the bombing there was a lot of debris everywhere.轰炸之后到处瓦砾成堆。
  • Bacteria sticks to food debris in the teeth,causing decay.细菌附着在牙缝中的食物残渣上,导致蛀牙。
8 geologic dg3x9     
adj.地质的
参考例句:
  • The Red Sea is a geologic continuation of the valley.红海就是一个峡谷在地质上的继续发展。
  • Delineation of channels is the first step of geologic evaluation.勾划河道的轮廓是地质解译的第一步。
9 grooves e2ee808c594bc87414652e71d74585a3     
n.沟( groove的名词复数 );槽;老一套;(某种)音乐节奏v.沟( groove的第三人称单数 );槽;老一套;(某种)音乐节奏
参考例句:
  • Wheels leave grooves in a dirt road. 车轮在泥路上留下了凹痕。 来自《简明英汉词典》
  • Sliding doors move in grooves. 滑动门在槽沟中移动。 来自《现代汉英综合大词典》
10 ridges 9198b24606843d31204907681f48436b     
n.脊( ridge的名词复数 );山脊;脊状突起;大气层的)高压脊
参考例句:
  • The path winds along mountain ridges. 峰回路转。
  • Perhaps that was the deepest truth in Ridges's nature. 在里奇斯的思想上,这大概可以算是天经地义第一条了。
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