reasonable pressure difference
reasonable water injecting amount
drainage with difference water pressure
High Pressure Water Pressure Test
scaling testing by injecting water pressure
reasonable pressure maintenance level
Reasonable Production Pressure Difference
reasonable water resources allocation
reasonable water supply
reasonable water surface rate
accumulative pore water pressure
additional water pressure
Additive pressure water supply
Additive pressure water supply device
boundary water pressure
Cleaning by high pressure water jet
coal bed injecting water
coal mining with water pressure
coefficient of safe water pressure