服务常用 meaning in English

service

Http and tcp ip are commonly used as the supporting layer for web services
超文本传输规约http及传输控制规约联网规约tcp ip是网络服务常用的支援层。
Http and tcpip are commonly used as the supporting layer for web services . the following diagram illustrates the interaction of these layers
超文本传输规约（ http ）及传输控制规约联网规约（ tcpip ）是网络服务常用的支援层。