| 单词 | active optics |
| 释义 | active opticsnoun (functioning as singular)a system to compensate for any deformation caused by gravity in the surface accuracy and alignment of the mirrors of an astronomical telescope by means of actuators that control the movable mirror supports Words nearby active opticsactive list, active margin, active mass, active-matrix, active methyl, active optics, active principle, active reason, active repressor, active safety, active service Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012 |
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