meridian 子午线
Magnetic meridian磁子午线;地磁子午线;磁子午;磁经
central meridian中央子午线;中央经线;中央子午圈
meridian passage中天;天体的中天;天空;天顶
meridian photometer子午光度计;中星光度计
meridian quadrant子午线四分仪
terrestrial meridian地球子午线;天文子午线;地面子午线;地球经圈
meridian spacing经差
meridian ellipse子午面
Meridian Star午星号;午星
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