本文将IP业务网络系统按照功能分为三个平面承载面、信令面和业务面。
IP-based service network is divided into three planes, bearing plane, signaling plane and application plane.
文档对数据传输协议和相关的通过S1接口建立用户平面传输承载的信令协议进行了详细的说明。
The present document specifies the standards for user data transport protocols and related signalling protocols to establish user plane transport bearers over the S1 interface.
本文研究了将楼板置于钢梁下翼缘的新型组合结构平面刚度，并和传统的将楼板置于钢梁上翼缘的结构形式的平面刚度和极限承载力作了比较。
This paper researches the plane stiffness of new composite structure for slab on the lower flange, which is compared with the traditional structure for the slab on the top flange.
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