交换服务 meaning in English

exchange service
switched service

More trade documents to be covered by electronic submission
更多贸易文件采用电子数据交换服务
Ibm s interchange services for e - business
Ibm的电子商务交换服务（
Teletypewriter exchange service telex twx
电传打字机交换服务
The design and realization of web data exchange platform based on xml
数据交换服务平台的设计与实现
Switched multi - megabit data service , smds
大量数据交换服务

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