火星

At present there are thirteen well-established chondrites,seven different parent bodies that experienced high temperatures and pervasive melting,and twelve main iron meteorite groups.

本文主要依据现有的资料综述陨石分类，以及来自小行星带、月球和火星等不同类型陨石的宇宙射线暴露年龄及其宇宙化学意义。

The isotopic abundances of rare gases and cosmic-ray exposure ages of asteroid meteorites, planetary meteorites and the Apollo lunar samples applied to clue up and understanding cosmic-ray exposure history of parent bodies of different meteorite types, collision events, the relationship between cosmic-ray exposure ages and heliocentric distance of the parent bodies, irradiation history of precompaction exposure of chondrules, pairing meteorites for the Antarctic meteorites and desert meteorites, the ejection history of planetary meteorites, and relative ages of lunar craters and so on.

小行星陨石、行星陨石及阿波罗月球样品的稀有气体同位素丰度和宇宙射线暴露年龄，已广泛应用于探索和了解不同类型陨石母体的宇宙射线暴露历史、冲击碰撞事件、暴露年龄与日心距离的关系、吸积形成母体前硅酸盐球粒的辐照历史、南极和沙漠陨石中成对陨石的判别、行星陨石的溅射历史及月坑的相对年龄等关键词：宇宙射线暴露年龄；陨石；球粒陨石；无球粒陨石；火星陨石；中铁陨石

There were sunflowers big as flowers on Mars and thick cockscombs bleeding the deep red fringe of theater curtains.

那里有向日葵，大得像火星上的花儿；还有肥厚的鸡冠，花朵漫溢出来像剧院帷幔上深红的裙边。

There were sunflowers big as flowers on Mars and thick cockscombs bleeding the deep red fringe of theater curtains.

那里有向日葵，大得像火星上的花儿；还有厚厚的鸡冠花，血一般深红，漫溢出来像剧院幕布边缘的流苏。

When will it be possible for us to think seriously about colonising Mars?

什么时候对我们来说严肃地思考移民火星是可能的。

When will it be possible for us to think seriously about colonising Mars?

什么时候人类才有可能认真地考虑征服火星？

The idea of colonising Mars -- a world 160 times more distant than the Moon -- will move decisively from the second phase to the third, when a significant number of people are living permanently in space.

如果有相当数量的人永久性地住在太空，征服火星的计划--一个比月球远160倍的星球--就可以明确地从第2阶段进入第3阶段。

The idea of colonising Mars -- a world 160 times more distant time the Moon -- will move decisively from the second phase to the third, when a significant number of people are living permanently in space.

有很多人永久地居住在了太空，移民火星，一个比月球到地球距离还要远160倍的世界，将可以果断地从第二阶段进入第三阶段。

Be sure to go out of your way to keep your talks confidential, away from gossipy boys and girls and far from the copycats.

确保你的谈话保密性，让这件事情远离那些闲言碎语，爱传留言的人们。5月26日是一个非常特殊的日子，因为他刚好在新月之后，在火星木星之间形成一个完美的角度，正在代表你名誉的12宫运行。

China's first Mars probe, Yinghuo-1, has been transported to Russia for compatibility tests and will blast off atop a Russian launch vehicle from Baikonur Cosmodrome in Kazakhstan in October, the Beijing News reported Thursday.

据《新京报》6日报道，我国首颗火星探测卫星&萤火一号&已运抵俄罗斯，经过最后的联合调试后，将于10月份搭载俄火箭从哈萨克拜科努尔航天中心发射升空。

In the United States, chronic alcoholism and hepatitis C are the most common ones.

在美国，慢性酒精中毒，肝炎是最常见的。

If you have any questions, you can contact me anytime.

如果有任何问题，你可以随时联系我。