1·Teaches bearings, triangulate, plot co - ordinate grids, compensate for declination and read topographic maps.
教轴承,分成三角形,情节坐标格子,补偿偏斜并且读地志的地图。
2·Teaches bearings, triangulate, plot co-ordinate grids, compensate for declination and read topographic maps.
教轴承,分成三角形,情节坐标格子,补偿偏斜并且读地志的地图。