只在这种投影之下地图上相互两点的罗盘方位才是正确的。
Only on this projection are two points on the map at correct compass course from one another.
他们之所以能够那样做,是因为这些原始记录同时使用了罗盘方位于天文观察来定位一艘航海船。
They are able to do so because these records use both compass bearings and astronomical observations to locate a vessel.
借助罗盘,旅行者可以找到自己所处的方位。
With the aid of a compass the traveler can find his bearings.
应用推荐