电罗径方位 bearing per gyro compass

椭圆罗径 elliptical compass

磁罗径 magnetic compass

罗径甲板 Luo Keng deck ; Luo diameter deck ; Luo path deck

舵罗径方位 bearing per steering compass

门罗小径 Munro Trail

罗富国径 Northcote Close

门罗路径 Munro Trail

罗纹内径 minor diameter of thread