| 1. | Grade for closed water circuit of coal preparation plant 选煤厂洗水闭路循环等级 |
| 2. | Pressureless discharge of rinsing water to water drain 洗水无压排放到废水排放管道。 |
| 3. | Experimental study on recycling of filter s backwashing water 滤池反冲洗水回用的小试研究 |
| 4. | Practice of closed water circuit at small coal preparation plant 小型选煤厂洗水闭路循环的实践 |
| 5. | Reform and result of washing water closed - cycle in coal preparation 选煤厂洗水闭路循环改造及效果 |
| 6. | Closed water circuit operation in practice at wangfengang washery 望峰岗选煤厂洗水闭路循环的实践 |
| 7. | Closed water circuit in practice at zhangzhuang coal mine washery 张庄矿选煤厂洗水闭路循环的实践 |
| 8. | To make renovation of systems to realize close recirculation of washing water 抓好系统改造实现洗水闭路 |
| 9. | Practice on the closed - circuitry of slime - water at shaqu coal preparation plant 沙曲矿选煤厂洗水闭路循环的实践 |
| 10. | Realization of slime water closed - circuitry by replenishment of process flowsheet 完善工艺流程实现洗水闭路循环 |