靠近地球的9号探测器和其他俄罗斯着陆器所看到的岩石图,暗示了一段痛苦的火山历史,这一点在上世纪90年代初得到了美国麦哲伦轨道飞行器的证实。
The rocky views glimpsed by the Nearer Nine and other Russian landers suggested a tortured volcanic history that was confirmed in the early 1990s by the American Magellan orbiter.
这种飞行器能够让任何接近中的彗星或其他可能飞奔至地球而来的太空抛射物体脱轨,并改变它们的运行轨道使其足以偏离地球。
This craft would be able to derail any incoming comets or other outer-space projectiles that might be hurtling towards Earth, and change their trajectory just enough that they miss us.
在俄罗斯方面对进步38号进行工程数据测试后,此飞行器将会脱离轨道并且销毁在地球大气层中。
Progress 38 will soon be deorbited and burn up in Earth's atmosphere-but not before Russian flight controllers use the spacecraft to conduct tests for engineering data.
月球勘测轨道飞行器(以下简称LRO),作为美国航天局最年轻的月球探测器,自2009年6月履行自身使命开始,已经向地球老家传回了大量宝贵数据。
The Lunar Reconnaissance Orbiter (LRO), NASA's youngest moon probe, has beamed home a treasure trove of data since its mission began in June 2009.
液态燃料火箭不断得到改进,它用在飞行器上,也被用来研究高层大气和把地球卫星送入轨道。
The liquid fuel rocket, which is continually being improved, is used in aircraft as well as for research in the upper air and for putting earth satellites into orbits.
但是如果能让飞行器变大或者利用小行星,我们就可以让地球轨道远离太阳。
But, if we were to increase the spacecraft's size, or use an asteroid, we could potentially move the earth's orbit away from the sun.
但是如果能让飞行器变大或者利用小行星,我们就可以让地球轨道远离太阳。
But, if we were to increase the spacecraft's size, or use an asteroid, we could potentially move the earth's orbit away from the sun.
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