An instrument consisting of a mirror turned by clockwork on an axis parallel to itself and to the axis of the earth, by means of which the…
| 单词 | θ1451 |
| 释义 | the world > the universe > cosmology > science of observation > astronomical instruments > observational instruments > [noun] > coelostat (1) cœlostat1898 An instrument consisting of a mirror turned by clockwork on an axis parallel to itself and to the axis of the earth, by means of which the… |
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