injecting water to coal seam  煤层注水

injection water coal sample  注水煤样

profile control in water-injection well  注水井调剖

Profile Modification in Water Injection Wells  注水井调剖

ratio of water to coal  水燃比

Reuse of blow down water in water circulating system  排污水回用

sludge water in water treatment plant  水厂排泥水; 给水厂排泥水

three-soft and rich-in-water coal seam  三软富水煤层

underground water in coal underground water  煤田矿坑水

water in water CPAM  水包水型阳离子聚丙烯酰胺

water -in -water emulsion  水包水

water infusion in coal seams  煤层注水

water injection coal sample  注水煤样

Water Injection in Oilfield  油田注水

water injection to keep pressure  注水保压

water injection to replace the oil  注水替油

water to coal ratio  水煤比

water to water heater  水-水加热器

water to water system  水-水系统