n.制图学，制图法
A most important tool is cartography.
一个最重要的工具就是地图学.
Engineering cartography is a subject characteristic of practice.
工程制图是一门实践性很强的技术课。
J . H . Lambert initiated a new epoch in the theoretical cartography.
兰伯特在理论制图学方面开创了一个新纪元.