combined pressure and vacuum relief valve

pressure relief valve

brake vacuum check valve

relief valve

combined arms force / combined-arms force

Vacuum Collection, Holding and Transfer (VCHT) system

check valve / non-return valve

non-return valve / check valve

thermobaric bomb (aerosol / vacuum bomb, fuel air explosive [FAE])

vacuum heat shield

brake vacuum line

distributor octane selector vacuum line

distributor vacuum spark control tube

vacuum piston

vacuum power cylinder

vacuum pump adapter

high vacuum

hydraulic brake with vacuum power

vacuum testing

gas vacuum engine

strike at vacuum

vacuum

vacuum cleaning

noncombatant vacuum

pressure reducing valve

pressure regulating valve

combined arms units and formations continuous artillery combat support

flaperons (combined flaps and ailerons)  

Base Expeditionary Targeting and Surveillance Systems - Combined

combined command post and field training exercise

civil relief

civilian relief units

disaster aid / relief