orbiting laser beam relay unit

laser relay unit (LRU)

orbiting satellite

orbiting observatory

orbiting-dipole radio communication

argon beam obscurant laser

laser-beam target illuminating device

laser beam welding

coded modulated laser beam target marker

antimissile laser beam system

laser recorder unit (LRU)

command artillery radio relay company

command radio relay and cable company

communications relay

communications relay group (CRG)

optical relay

radio relay

radio relay facilities

radio relay station

relay

relay through

relay to…

tape relay

guided missile relay working group

starter relay

calling relay

relay transmitter

differential relay (integrated device)

frequency relay

line-of-sight radio-relay system

radio-relay communication

starter disengagement relay

line-of-sight microwave radio relay system