俄罗斯发射火星探测火箭-凯发k8官网

俄罗斯发射火星探测火箭

文章来源：未知文章作者：enread 发布时间：2016-03-15 06:45 字体： [ ]　

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a russian rocket has lifted off from kazakhstan in a new mission to find life on mars.

一枚俄罗斯火箭在哈萨克斯坦点火起飞，该火箭承担着在火星上寻找生命的任务。

exomars is a ¹ project between the european and russian space agencies.

the rocket will launch two unmanned probes which will travel across space for seven months.

the trace gas orbiter will hunt for ² gas in the martian atmosphere and show if it was generated by geology or biological processes.

methane is a gas largely produced by living organisms and could prove life once existed on the planet.

the second probe, schiaparelli, is a trial lander which will test technology ahead of the later mission.

exomars 2018 will send another rover built in the uk to drill below the planet's surface to look for signs of life.

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收听单词发音

1
adj.联合的，共同的；n.关节，接合处；v.连接，贴合
参考例句：
i had a bad fall,which put my shoulder out of joint.我重重地摔了一跤，肩膀脫臼了。 we wrote a letter in joint names.我们联名写了封信。

2
n.甲烷，沼气
参考例句：
the blast was caused by pockets of methane gas that ignited.爆炸是由数袋甲烷气体着火引起的。 methane may have extraterrestrial significance.甲烷具有星际意义。