| 1. | Not , nordic optical telescope
北欧光学望远镜 |
| 2. | Radio telescopes have been able to probe space beyond the range of ordinary optical telescopes
射电望远镜已能探测普通光学望远镜达不到的宇宙空间 |
| 3. | But even the best optical telescopes cannot make out what the universe was like at an age of less than one billion years
但即便是最先进的光学望远镜，也无法窥知宇宙在10亿岁之前的模样。 |
| 4. | Regarding groundbased observation , the largest optical telescopes to date are the twin 10 - m keck telescopes on mauna kea of hawaii
位于夏威夷蒙那基亚山上的却克望远镜，口径达10米，是目前世上最大的光学望远镜。 |
| 5. | Explanation : the center of our milky way galaxy is hidden from the prying eyes of optical telescopes by clouds of obscuring dust and gas
说明：在不透光尘埃与云气的遮掩下，我们银河系的中心在可见光望远镜中隐不可见。 |
| 6. | Explanation : the center of our milky way galaxy is hidden from the prying eyes of optical telescopes by clouds of obscuring dust and gas
说明:在不透光尘埃与云气的遮掩下，我们银河系的中心在普通可见光望远镜中是难以看见的。 |
| 7. | Through the optical telescope , ngc 6240 is shaped like a butterfly . it is so odd - looking because it is in fact the result of the collision of two spiral galaxies
以光学观测， ngc 6240的形状就像一只蝴蝶，它之所以这样古怪，是因为它其实是两个旋涡状星系撞的结果。 |
| 8. | Nasa s chandra x - ray observatory has changed this picture ; it provides the sub - arcsecond resolution equivalent to the spatial resolution of ground - based optical telescopes
这个天文台具备低于一角秒的分辨率，精确程度足以和地面光学望远镜媲美，解决了一直以来对应天体证认困难的问题。 |
| 9. | However , radio telescopes do have their own shortcoming . firstly , radio astronomical images are not as fascinating as optical images . moreover , they do not work like optical telescopes which can receive all visible wavelengths and then produce monochromatic signals by means of filters
可是，射电天文望远镜也有它的缺点，首先射电天文图像并没有光学照片那么具美感，而且它不像光学望远镜般，可以把可见光全部接收，然后加上滤色片分出单色光。 |
