The flotation and filtration test of Ximing coal were studied by using 7 kinds of PAM as additives.
采用7种型号的聚丙烯酰胺作为添加剂，对西铭煤进行了浮选和过滤试验。
2
Introduces the situation of devices management in Ximing coal mine, expounds the ways of exerting the leading function of the devices management.
介绍了西铭矿设备管理情况，阐述了发挥好设备管理龙头作用的途径。
3
On the other side of the village, in Chongqing's Dazu County, beekeeper Long Ximing is too engrossed in his honeycombs - and avoiding being stung - to check on his phone's shrill alert.