snap - sphe
- speed ratio
- speed record
- speed recorder
- speed reducer
- speed reduction
- speed reduction device
- speed reduction gearing
- speed regulation
- speed ring
- speed sender unit
- speed sense
- speed setpoint
- speed shifting mechanism
- speed slackening signal
- speed stability
- speed synchronizer
- speed transition ramps
- speed trial
- speed up
- speed variation
- speed variator
- speed waggon
- speed-change box
- speed-change gear
- speed-change lever
- speed-chord
- speed-increase gear
- speed-increaser
- speed-increasing gear
- speed-limit device
- speed-limit signs
- speed-limiting device
- speed-reduction gearing
- speed-sensing device
- speed-sensitive switch
- speed-testing runway
- speed-torque characteristic
- speed-trap
- speed-up
- speeder
