archaian meaning in Chinese

太古代的
太古化的

The ming dynasty used besides the technology of forefathers ' monsoon to make certain routes , the compass to gauide marching , they took a lot of records of the constellation oriented datas and the variety of the ocean orb ' s height in different oceanic areas in the book named < constellation chart of acrossing seas > too , which contribute a lot in the archaian astronomy
明朝船队除了采用前人季风确定航线、指南针导航等技术外，还在《过洋牵星图》中纪录了众多的星宿定位数据和不同海区天体高度的变化，对古代的天文导航有重要贡献。