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OCCS
abbr.
abbr.
Ordnance and Chemical Center and School
abbr., auto.
oxidating catalyst converter system
abbr., earth.sc.
open cast coal site
abbr., el.
Office of Computer and Communications System
;
optical cable communications system
abbr., mil., avia.
onboard complex control system
mil.
operational command and control system
tech.
optical contrast contour seeker
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