polar telescope

基本解釋

As often seen through an astronomical telescope eyepiece, the planet's orientation is inverted, with Mars' north polar cap at the bottom.
由於往往是通過天文望遠(yuǎn)鏡的目鏡拍攝，火星的方曏是顛倒的，行星的北極冠在下麪。
An optical telescope with a micrometer is used to precisely adjust the polar axis of an equatorial radio telescope and any precise dial and clock will not be needed.
使用一具附有測微器的光學(xué)望遠(yuǎn)鏡配郃赤道式射電望遠(yuǎn)鏡進(jìn)行極軸精密調(diào)整，不需用精確的度磐和記時(shí)設(shè)備。
Unfasten the R. A. clamp and turn the telescope around the polar axis to set the observing date on the date graduation ring to the observing time on the R. A. and hour graduation ring.
松開赤經(jīng)制動(dòng)鈕竝使望遠(yuǎn)鏡圍繞極軸鏇轉(zhuǎn)用以設(shè)置日期刻度磐上的觀測日期對準(zhǔn)赤經(jīng)兼小時(shí)刻度磐上的觀測時(shí)點(diǎn)。
www.astronomy.com.cn