full bore pressure controlled selective test valve
inner-heat change type of low pressure radial flow ammonia converter
inner low pressure heater
idle low oil pressure setpoint
hot isostatic pressing at low pressure
High Pressure Low Permeability Reservoir
high pressure low density polyethylene
high pressure and total low temperature CO shift
High Pressure and Low Permeability
High Pressure and Low Percolation Formation
high or low pressure continuous hydrogenation plant
high back-pressure and low oil pressure trip
high and low pressure turbine
high and low pressure relay
high and low pressure cylinder