operating margin
operating mechanism
operating microscope
operating modes
operating parameters
operating performance
operating period
operating point
operating policies

operating pressure
operating procedures
operating range
operating regimes
operating region
operating regions
operating room
operating room nurses
operating room nursing
operating strategies

operating surgeon
operating system
operating systems
operating table
operating temperature
operating theatre
operating time
operating variables
operating voltage
operating window

operation
operation characteristics
operation conditions
operation cost
operation frequency
operation mode
operation parameters
operation pressure
operation principle
operation procedure

operation room
operation temperature
operation time
operation voltage