The mankind take the bearings before mariner's compass invention main depend the sun, moon etc. heavenly body, perhaps mountain stone tree etc. marking thing, however, these means for take the bearing...
汉译英--指南针的发明在指南针发明之前 人类辨别方向主要靠太阳,月亮等天体,或者山石树木等标志物,然而,这些辨别方向的手