操作和消息是抽象描述的，但它们绑定到具体的网络协议和消息格式上，用来定义终端。
The operations and messages are described abstractly, but they are bound to a concrete network protocol and message format to define an endpoint.
SSL是一种协议，该协议会对终端用户和Web服务器间的网络通信进行加密。
SSL is a protocol that encrypts network communication to and from an end user and a Web server.
而无线网络本身带宽多变、终端异构、丢包率高等与生俱来的特点对网络结构和协议的设计提出了新的要求。
Because of the changing bandwidth, heterogeneous terminals and high packet loss rate, the wireless networks put forward new requirement for the design of network architectures and protocols.
由于IEEE 802.11MAC协议采用了简单的干扰模型，因此产生了隐藏终端和暴露终端这两个严重影响无线自组织网络性能的问题。
Due to using the simplified interference model, IEEE 802.11 MAC protocol introduces the hidden and exposed terminal problems which significantly decrease the performance of AD hoc wireless networks.
由于IEEE 802.11MAC协议采用了简单的干扰模型，因此产生了隐藏终端和暴露终端这两个严重影响无线自组织网络性能的问题。
Due to using the simplified interference model, IEEE 802.11 MAC protocol introduces the hidden and exposed terminal problems which significantly decrease the performance of AD hoc wireless networks.
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