operates outside operates passenger operates primarily operates properly operates similar operates smoothly operates well operates worldwide operati operatic operatic debut operatic soprano operatic tenor operating operating a business operating a motor vehicle operating a power tool operating a small operating a vehicle operating a wind operating abroad operating activities operating agencies operating agency operating agreement operating agreements operating aid operating air operating alone operating and administrative operating and capital operating and financial operating and maintaining operating and maintenance operating and maintenance costs operating and maintenance instructions operating and safety instructions operating and storage operating appliance operating appropriations operating area operating areas operating arm operating assets operating at a loss operating at full operating at full capacity operating at high operating at maximum operating at peak operating at the same operating authority operating base operating bases operating budget operating budgets operating business operating button operating capability operating capacity operating capital operating cash operating cash flow operating cash reserve operating center operating centre operating certificate operating chamber operating characteristics operating charges operating code operating committee operating companies operating company operating concept operating condition operating conditions operating configuration operating continuously operating contribution operating control operating controls operating correctly operating cost operating costs operating current operating cycle operating cycles operating data operating days operating deficit operating depth operating device operating devices operating diagram operating distance operating division operating divisions operating earnings