In the third chapter, author takes a statistic analysis about the mine deposited and exploitation thing and exploitation foreground, which includes granite, porcelain clay, bluestone, quartz etc.

  • 第三章,全面统计分析了花岗岩、瓷土矿、青石、石英砂等矿产资源的赋存和开采状况、开发前景。
目录 查词历史