mining operation
短语词组
- mining rights operation 矿权经营
- mining g operation 采矿工作
- mechanized coal mining operation 采煤机械化
- nodule mining operation 结核开采作业
- hydraulic mining operation 水采作业
- hydraulic hitch mining operation 水采作业
- Set mining operation processes 集采化操作流程
- discharging cartridge in mining operation 矿山排漏弹
- computer simula -tion in mining operation 矿山生产过程计算机模拟 返回 mining operation