基本解釋n.[天]定天鏡( 觀測或拍攝天體時(shí)鏡面與地軸一同轉(zhuǎn)動可使圖像固定不動)同根派生 coelostat相關(guān)詞英漢例句As a coelostat, MA tracks the motion of celestial objects observed at their meridian passages. MA作為定天鏡跟蹤天體的運(yùn)動,望遠(yuǎn)鏡在天體中天前后進(jìn)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,定天鏡口徑460mm,成象鏡口徑330mm,主焦距21m,卡式焦距40m,相應(yīng)的太陽像直徑分別為200mm和373mm。laser coelostat 激光定向儀coelostat更多例句