double envelopment

подвійне охоплення

double-double wargame

close envelopment

vertical envelopment

wide envelopment

deep airborne envelopment

deep envelopment

aerial envelopment

waterborne envelopment

amphibious envelopment

airborne envelopment

armored envelopment

single envelopment

double apron fence

double bottom space

double concertina fence

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

single sap with double parapet

annular double-row ball bearing

cam and double roller

double-chamber gun

automatic double cycle revolver-type rifle