air gap
Množina: air gaps
An open vertical drop, or vertical empty space, that separates a drinking (potable) water supply to be protected from another water system in a water treatment plant or other location. This open gap prevents the contamination of drinking water by backsiphonage or backflow because there is no way raw water or any other water can reach the drinking water.
air force · air force academy · air-force base · air-freight · air freshener · air gap · airgauge · air gun · airhead · air hostess · aerified · airily
procep
IPA: / protsep /Presečeno mesto, rascep.
procjep · vrtlog · međuprostor · otvor · rascep · usek · prorez · tunel · procijep · jaz · tesnac · ponor · mehur · svetlarnik · vakuum · zjap · rov · žljeb · rascjep · prazan prostor · levak · zasek · kovitlac · žleb · rased · raskorak · lijevak · vakum · lavirint · zid · pukotinu · krater · kavez · ambis · kontinuum · cajtnot · krvni sud · rez · udarni talas · hodnik