基准: datum standard; criterion; r ...方向: direction; orientation角: role; part; character基准方向: reference direction; reference organization图像基准方向: reference direction of an image运动基准方向: reference direction of motion发射天线基准方向图: transmitting antenna reference patterns方向角: angle of aspect; bearing direction; direction angles; directional angles; lateral deflection angle基准方位: reference azimuth基准方位角: reference azimuth标准方向: reference direction对准方向: direct瞄准方向: boresight direction; sighted direction【数学】方向角。: direction angle磁方向角: magnetic bearing反方向角: back bearing方位;方向角: bearing方向角变换: deflection change方向角变位: deflection change后方向角: reverse bearing平面方向角: grid bearing水平方向角: training angle真北方向角: true north bearing真方向角: true bearing主方向角: principal bearing