operator A操作员Aoperatorn.操作员；技工；管理者；报务员；【计】运算符operator console facilities操作员控制台设备operator applied occurrence[计] 运算符应用性出现Operator-splitting scheme算子分裂格式operator-handled toll call手动长途电话Operator Preparation Program操作员准备程序operator-product expansion算符乘积展开operator toll dialing system话务员长途拨号制operators make some mistakes操作失误operator annunciator station操作指示台Operator Aiding Demonstrator操作员辅助演示器