oper - para
- operate
- operate a clutch
- operate a switch
- operate at full throttle
- operate current
- operate with
- operated by hand
- operated by motor
- operated crossover
- operated switch
- operating
- operating advantage
- operating characteristic
- operating cheek
- operating coil
- operating conditions
- operating console
- operating cost
- operating crank
- operating current
- operating cylinder
- operating department
- operating disturbance
- operating division
- operating engineer
- operating frequency
- operating gear
- operating house
- operating instruction
- operating instructions
- operating jack
- operating key
- operating lever
- operating lug
- operating magnet
- operating man
- operating mechanism
- operating officials
- operating panel
- operating panel area
