单词	地平纬圈--高度圈
释义	地平纬圈；高度圈parallel of altitude
随便看	greenwich hour angle greenwich hour angle (gha) greenwich hour angle {= gha} greenwich hour angle{=gha} greenwich hour angle 格林尼治时角 greenwich mean astronomical time 格林尼治天文平时 greenwich mean sidereal time greenwich (mean) time greenwich mean time greenwich mean time (gmt) greenwich mean time {= gmt} greenwich mean time {=gmt} greenwich mean time{=g.m.t} greenwich mean time{=gmt} greenwich mean time，gmt greenwich meridian greenwich meridian plane greenwich midnight greenwich sideral time greenwich sidereal time greenwich sidereal time{=gst} greenwich sidereal time 格林尼治恒星时 greenwich solar time greenwich standard time greenwich time