| 单词 | telescope mirror |
| 释义 | telescope mirror In the summer of 1975, the telescope mirror was improved to one tenth wavelength by a process of re-figuring and re-aluminumizing. Retrieved from Wikipedia CC BY-SA 3.0 This was something which newton proposed as an improvement on his second telescope mirror as he found that the metal was too soft due to the silver. Retrieved from Wikipedia CC BY-SA 3.0 It has been used as stiff lightweight structural material, specifically for support of reflecting telescope mirrors. Retrieved from Wikipedia CC BY-SA 3.0 This sometimes proved difficult, with the telescope mirrors sometimes having to be abandoned. Retrieved from Wikipedia CC BY-SA 3.0 The telescope mirrors are aligned within a fraction of a wavelength of visible light by actuators under each segment. Retrieved from Wikipedia CC BY-SA 3.0 |
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