operatory操作区operatorn.操作员；技工；管理者；报务员；【计】运算符operator intervention操作员干预operator automorphism算子同构Operator of Crossover杂交算子operator toll dialing叫按长途电话operator handled call话务员处理的呼叫, 人工处理呼叫operator wait on busy话务员遇忙预占operator distribution操作员分布operator endomorphism算子自同态operator homomorphism算子同态operator intercepting话务员拦截