The two most popular transport layer protocols are the transmission control protocol (TCP) and the user datagram protocol (UDP)

两种最流行的传输层协议是传输控制协议（TCP）和用户数据报协议（UDP）

youdao

Recall that the Internet protocol (IP) is the core network layer protocol that sits below the transport protocol (most commonly the Transmission Control protocol, or TCP).

回想一下，Internet Protocol (IP)是传输协议(通常称为传输控制协议或TCP)下面的核心网络层协议。

youdao

Transport Layer protocols, such as the Transmission Control Protocol (TCP), the User Datagram Protocol (UDP), specify a source and destination port number in their packet headers.

传输层协议，诸如传输控制协议（TCP），用户数据报协议（UDP）， 会在它们的头部指定一个资源和目的地的端口号。

youdao

Known as TCP, the Transmission Control Protocol is core to the functioning of the the Internet.

FORBES: What Google and Facebook Have in Common With Megaupload

For example, on Monday Google engineers proposed changes to the Transmission Control Protocol in order to make the Web faster.

FORBES: What Google and Facebook Have in Common With Megaupload