(n) hydroxide ion
(n) cold-brew coffee
(n) hydrogen ion concentration
(n) diver propulsion vehicle
DPV
underwater scooter
(n) underwater photography dive
(n) (comp) horizontal scanning frequency
(exp) to draw water off a river
(n) freshwater diving
(n) desalination plant
(n) breathable-waterproof material
waterproof-breathable fabric
(n) exclusive economic zone
EEZ
(n) unsaturated hydrocarbon
(iK) (exp) what's done is done (lit: spilt water won't go back into its tray)
that's water under the bridge
it is no use crying over spilt milk
(exp) what's done is done (lit: spilt water won't go back into its tray)
that's water under the bridge
it is no use crying over spilt milk
(n) boiling-water reactor
BWR
(n) chloral hydrate
(n) aromatic hydrocarbon
(n) anhydrous alcohol
absolute alcohol
(n) Oyashio class submarine
(n) Harushio class submarine
(n) (comp) Nickel-Metal Hydride battery (NiMH battery)
(n) multilevel diving
(n) (obsc) alkane
(exp) (id) Blood is thicker than water
(n) pump priming
(exp) to dissolve sugar in water
(n) calcium hydroxide (Ca(OH)2)
(n) sodium hydroxide
(n) underwater videography dive
(n) (comp) horizontal loading