承载通路连接协议在本地交换机的控制下根据需要来建立和清除承载连接，该连接由信令信息来标识。
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.
本实用新型有效地解决了已有技术存在的连接件易松动、甚至失效的问题，其承载性能稳定、可靠、较好的控制了围岩变形。
The load carrying property is stable and reliable, and thereby, the deformation of the surrounding rock can be controlled well.
本实用新型有效地解决了已有技术存在的连接件易松动、甚至失效的问题，其承载性能稳定、可靠、较好的控制了围岩变形。
The load carrying property is stable and reliable, and thereby, the deformation of the surrounding rock can be controlled well.
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