矿山井巷 meaning in Chinese
mine working
Examples
- Specification for nonferrous metal survey
有色金属矿山井巷工程测量规程 - Code for construction and acceptance of mining pit engineering
矿山井巷工程施工及验收规范 - Specifications for construction and acceptance of mine shaft and tunnel structure
矿山井巷工程施工及验收规范 - Specification for nonferrous metal mine shaft engineering construction and acceptance
有色金属矿山井巷工程施工及验收规范 - Specifications for nonferrous metal mine shaft to installation engineering construction and acceptance
有色金属矿山井巷安装工程施工及验收规范