longitude
特殊用法astronomical longitude1.■天文经度celestial [ecliptic] longitude1.■【天】黄经fictitious longitude1.■【航海】假想经度galactic longitude1.■【天】银经geodetic longitude1.■大地经度geomagnetic longitude1.■【地物】地磁经度geographic longitude1.■地理经度grid longitude1.■【航空、航海】格网经度heliographic longitude1.■【天】日面经度mean longitude1.■平黄径observed longitude1.■【航海】观测经度west longitude1.■西经true longitude1.■真经度