doubly labeled water method
water water energetic reactor
Water-Water Gas Engine Driven Heat Pump (WWGEHP)
Water-water Heat Exchanger
doubly-fed doubly-salient PM machine for wind powe
doubly-fed doubly-salient PM machine for wind power generation
Stator-doubly-fed doubly salient
Stator-doubly-fed doubly salient motor
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
brackish water to salt water
chilled water or hot water storage
circulating water and service water