n.八分圓;八分儀;離角45度的位置
Keywords octant;circle interpolation;deviation; 卦限;圓弧插補(bǔ);偏差;
an instrument for measuring the angular distance between celestial objects; resembles an octant 測量兩個(gè)天體之間的角距離;類似于八分儀
an instrument for measuring the angular distance between celestial objects; resembles an octant. 測量兩個(gè)天體之間的角距離;類似于八分儀。