The arrangement of the natural and artificial physical features of an area: a topographic(al) map indicates, to scale, the natural features of the Earth’s surface, as well as human features, with features at the correct relationship to each other.
科学参考收录了60776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。