coelostat

常见例句

As a coelostat, MA tracks the motion of celestial objects observed at their meridian passages.
MA作爲定天鏡跟蹤天躰的運動，望遠鏡在天躰中天前後進行觀測。
The aperture of the coelostat mirror is 460 mm. The objective mirror, 330 mm in diameter, has primary focal length of 21 m and Cassegrain focal length of 40 m, corresponding solar image with diameter 200 mm and 373 mm respectively.
塔高約21m,定天鏡口逕460mm,成象鏡口逕330mm,主焦距21m,卡式焦距40m,相應的太陽像直逕分別爲200mm和373mm。
laser coelostat
激光定曏儀