“三北方向图”的概念、定义、翻译、参考文献-科学参考

单词	三北方向图
释义	三北方向图 Encyclopedia 工学地图数学要素释 sketch of three-north direction三北方向图地图上标明真北方向、坐标北方向和磁北方向关系的方向图。
随便看	packet ship packet sniffer packet sniffing packet switched bus packet switching packing packing box seal packing coefficient packing density packing design packing dimension packing effect packing factor packing fraction packing light,surreptitious performance packing material packing measure packing of spheres packing polyhedron packing problem packing ratio packing structure packing textiles for dangerous products packing textiles for fillers packing textiles for fragile products

科学参考收录了854744条科技类词条，基本涵盖了常见科技类参考文献及英语词汇的翻译，是科学学习和研究的有利工具。