single sap with double parapet

single sap with one parapet

single sap

parapet (structure)

parapet

double-double wargame

Security Assistance Program (SAP)

sap an agreement

sap support

sap up

sap-head

underground sap

sap

single-seat / single seat

double apron fence

double bottom

double bottom space

double concertina fence

double envelopment

double hull

double-apron fence

double consistent fire concentration

double magazine pouch, triple mag pouch

composite-modified double-base propellant

double staggered column

double crossover

double-entry passageway

annular double-row ball bearing

cam and double roller

double-chamber gun

automatic double cycle revolver-type rifle

double back

double banking