洲际经转电路
intercontinental transit circuit
人工国际交换台
manual international
manual international exchange
Exchange
串接交换交换
tandem switching exchange
强奇异交换交换子代数
strongly singular maximal abelian self-adjoint sub
边际转换率
marginal rate of transformation
发信国际交换中心点码
Orignation ISC Point code
国际交换电路
FXC Foreign eXchange Circuit
国际交换局
FXO Foreign eXchange Office
国际交换维护中心
international switching maintenance center
国际交换业务
FXS Foreign eXchange Service
国际交换与测试中心
international switching and testing center
自动国际交换局
automatic international exchange
automatic international
Exchange
转换经营机制
transformingmanagement mechanism
存转交换
store and forward switching
switching， store and forward
switching
store and forward