learn and extract
英
美
- and conj.和；加；接着；那么
- extract vt.摘录；提取；拔出；榨出；选取[计算机]提取.n.摘录；精华；榨出物
- learn v.学会；学习；得知
- Which contains the map and the schematic drawing in the process of experiences, it is for beginners to learn from.
其中含有了在绘制版图和原理图过程中的心得体会，值得初学者学习借鉴。
