Zenithal Hourly Rate每小時天頂流星數;天頂流星出現率;天頂每小時出現率
zenithal chart方位投影圖;方位投影地圖;天頂投影圖
zenithal equidistant天頂等距投影;方位等距投影
zenithal rains天頂季雨;天頂雨
zenithal angle of hole鉆孔頂角
zenithal equidistant map天頂等距投影地圖
zenithal equidistant projection等距天頂投影;天頂等距投影
zenithal refraction天頂大氣折射
The zenithal bistable device零功率顯示器
1. relating to or located at or near the zenith