# 第二章 机械设备

- [资料库目录](https://shandong-chorography.org/database/qingdao-gazetteer-posts/toc.md)
- [章节网页](https://shandong-chorography.org/database/qingdao-gazetteer-posts/section/15/)

## 篇目

- [第一节交换机…](https://shandong-chorography.org/database/qingdao-gazetteer-posts/section/15/article/43/index.txt) ([网页](https://shandong-chorography.org/database/qingdao-gazetteer-posts/section/15/article/43/))
- [第二节 载波机](https://shandong-chorography.org/database/qingdao-gazetteer-posts/section/15/article/44/index.txt) ([网页](https://shandong-chorography.org/database/qingdao-gazetteer-posts/section/15/article/44/))