如果无法确定第三方组件，那么使用平台无关的协议(例如上面提到过的那些)在传输层进行集成。
If unsure about third party components, integrate at the transport layer instead using platform independent protocols such as those mentioned above.
所有应用层协议都使用套接字层作为与传输层协议之间的接口。
All application layer protocols use the sockets layer as their interface to the transport layer protocol.
每个层都使用下面一层的服务，这使得顶层协议能够在物理网络上传输消息。
Each layer employs the services of the layer underneath, which enables a top layer protocol to transmit messages over the physical network.
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