承载电路业务 ATM bearer service ATM
租用电路业务 leased circuit service ; LCS
租用电报电路业务 leased telegraph circuit service
数字数据电路业务 [计] digital data circuit service
预约电路业务 reserved circuit service
ATM承载电路业务 ATM bearer service
电路仿真业务 circuit emulation service ; ces ; Circuit Emulation Serviceover Packet ; CESOP
高速电路交换数据业务 HSCSD ; High Speed Circuit Service Data ; High-Speed Circuit-Switched Data
业务电路单元 service circuit unit
电路交换业务 Circuit Switched
ATM技术综合了电路模式和分组模式的优点，为各种业务的综合接入和信息的高速传输提供了技术基础。
The ATM synthesize the advantage of circuit mode and package mode and base technology foundation for synthetic access of various multimedia service and high transport of information.
对UM71轨道电路技术业务管理系统，从总体目标、技术关键问题、系统功能和使用情况等几个方面进行了详细论述。
The overall objective, technological crux, system function and application of UM71 track circuit technological profession management system were outlined in this paper.
国际海缆电路出租业务经营者不得利用内陆传输链路经营国际海缆电路出租业务以外之业务。
The international submarine cable leased-circuit business operator shall not use its inland backhaul to engage in other business than the international submarine cable leased-circuit business.
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