常見例句雙語例句A bearer channel connection protocol establishes and de-establishes bearer connections required on demand, identified by the signalling information, under the control of the Local Exchange.承載通路連接協(xié)議在本地交換機的控制下根據(jù)需要來建立和清除承載連接,該連接由信令信息來標識。www.ptsn.net.cn 返回 information bearer channel