combined controlling of surface and subsurface water logging
subsurface water balance
subsurface water regime
subsurface-water injection
surface and subsurface water
water water energetic reactor
Water-Water Gas Engine Driven Heat Pump (WWGEHP)
Water-water Heat Exchanger
subsurface controlled subsurface safety valve
automatic scanning water-jetting high-altitude water cannon fire-extinguishing device
balance between water supply and water demand
ballast water and de-ballast water
brackish water and semi-saline water