| 单词 | coelostat |
| 释义 | coelostat /see"leuh stat'/, n. Astron. an apparatus consisting of a mirror driven by clockwork, used to enable a fixed telescope to keep the same area of sky in its field of view by compensating for the apparent rotation of the celestial sphere. Cf. siderostat. [1895-1900; coelo- (for L caeli-, comb. form of caelum sky) + -STAT] |
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