a semiconductor laser with external optical feedback
blade with external fir-tree root
blade with external inverted-T-root
blade with external T-root
calculator with external program input
centrifugal fan with external rotor
doubly salient permanent magnet motor with external motor
effective sub-critical neutron multiplication factor k s with external neutron source
evaporator with external heating unit
flanged sleeve with external thread
Parallel pins with external thread
Process with external compression
reinforced with external steel encased
strengthening with external bonding
strengthening with external steel
strengthening with external tendons
surge arrester with external series gaps
toroidal system with external winding