为了检测这一想法,他和他各国的同事建立了一个陆基的雏形。
This is a piece of copper foil 20cm square that has 696 rings, a portion of which isreproduced above.
这是一片20平方厘米的铜箔,它有696个环。
Because it is this small, its focal length is only 18 metres.
铜箔的一部分是再生的。因为它体积偏小,所以它的聚焦只有18米。
In order that the foil does not fall apart, each transparent ring is actually a series ofcurved slots in the copper rather than a continuous gap.
为了不让铜箔散开,每一个透明的环实际上都是铜箔里的一系列的曲线轮槽,而不是连续的空隙。
This, though, does not affect the system s optical properties and it can, indeed, see small,faint objects that are near large, bright ones.
尽管如此,这并不影响整个系统的视觉特性,并且,它也确实能够看见巨大且明亮的恒星旁边那些小型且微弱的物体。
When Dr Koechlin and his team pointed it at Mars they could distinguish that planet s twotiny moonsa task which would require a Newtonian telescope with a mirror at least 30cmacross.
当凯什兰博士和他的团队观测火星时,他们可以分辨火星的两个微小卫星这样的任务如果是利用牛顿的望远镜则需要一个直径最少长达30厘米的镜面。
【2015考研英语阅读寻找外星生物】相关文章:
最新
2016-10-18
2016-10-11
2016-10-11
2016-10-08
2016-09-30
2016-09-30