coelostat

coelostat读音音标

英 ['si:ləstæt]

美 ['sɪləˌstæt]

coelostat意思解释

n.

定天镜（观测或拍摄天体时镜面与地轴一同转动可使图像固定不动）；

英英释义

n.

optical device used to follow the path of a celestial body and reflect its light into a telescope; has a movable and a fixed mirror