double projection [测] 双重投影 ; 双像投影

conformal double projection 正形双重投影 ; 保形双重投影

double-projection plotter 双投影测图仪

double-projection stereoscope plotting instrument 双投影立体测图仪

double plane projection 复投影面投影

double projection instrument 双像投影仪

double azimuthal projection 双重方位投影

double azimuthal map projection 双正方向投影

double circular projection 双圆投影