liqu - lox
- long range navigation
- long range profile
- long range proving ground
- long range radar
- long range radio beacon
- long range seismic identification criterion
- long range space program
- long range teleseismic system
- long range theater nuclear forces
- long range theater nuclear weapons
- long range weapon
- long range weapon range
- long ranged radio control
- long recoil mechanism
- long run test
- long space flight
- long storage
- long stroke shock strut
- long term harm
- long term hazard
- long term irradiation
- long term planning office
- long term space station
- long term storage period
- long time testing
- long train
- long wave infrared range
- long wave transmitter
- long waves
- longer range intermediate range nuclear forces
- longer term spent fuel storage
- longitude selection
- longitudinal
- longitudinal accelerometer
- longitudinal actuator
- longitudinal dihedral
- longitudinal dike
- longitudinal displacements
- longitudinal engine mounting
- longitudinal frame
