operation of multiple operation of national operation of new operation of nuclear operation of payment systems operation of radio operation of system operation of the air operation of the automatic operation of the business operation of the circuit operation of the company operation of the control operation of the device operation of the door operation of the electric operation of the engine operation of the equipment operation of the facility operation of the fund operation of the gas operation of the heat operation of the machine operation of the market operation of the microwave operation of the motor operation of the national operation of the network operation of the plant operation of the power operation of the process operation of the product operation of the program operation of the project operation of the pump operation of the reactor operation of the safety operation of the school operation of the service operation of the site operation of the switch operation of the transmission operation of the transmitter operation of the valve operation of the website operation of the wind operation of this machine operation of various operation olive operation on page operation one operation only operation operation operation overlord operation panel operation paperclip operation parameters operation peace operation performance operation performed operation period operation phase operation phases operation phoenix operation pillar operation plan operation planning operation point operation position operation possible operation power operation pressure operation principle operation procedure operation procedures operation proceeds operation process operation produces operation protective edge operation provide operation range operation red operation reinhard operation required operation requirements operation requires operation rescue operation restore operation resulted operation results operation right operation room operation rooms operation safety operation save operation screen operation sea lion operation section operation see