operator B操作员Boperatorn.操作员；技工；管理者；报务员；【计】运算符operator precedence grammar inference运算优先文法推断operator assured exchange line access话务员保留的交换机外线Operator Interactive Display Terminal操作员交互显示终端operators of state-owned enterprises国有企业经营者operator communication control facility操作员通信控制程序operator lower-semi Fredholm sequence算子下半Fredholm序列operator-valued martingale transforms算子值鞅变换operator upper-semi Fredholm sequence算子上半Fredholm序列Operator Inequality for Convex Sequences算子凸序列不等式operator upper-semi Fredholm sequences算子上半Fredholm序列