coal preparation
短语词组
- design for coal -preparation plant 选煤厂设计
- coal -handling and preparation 煤加工制备
- pulverized -coal preparation 粉煤备制
- preparation coal -water mixture 水煤浆制备
- coal preparation system -new technology-application 备煤系统新技术应用
- heavy -media coal preparation process 重介选煤工艺
- high -efficient coal preparation plant 高效选煤厂
- multi -story coal preparation building 多层选煤厂房 返回 coal preparation