采用可靠的传输机制的消息传递是电子商务系统中中间件的基本组件，也是企业计算所必需的技术。

The delivery of messages using a reliable transport mechanism is a fundamental component for middleware in e-business systems, and a needed technology in enterprise computing.

youdao

在RFC 3262中，开发了一项机制来确保可靠地发送消息，且仅为确认目的而发送，以便在使用udp之类的传输协议时不会丢失呼叫状态。

In RFC 3262, a mechanism was developed to ensure that the responses are sent reliably and acknowledged alone so that the status of the call is not lost if the transport protocol is something like UDP.

youdao

这里没有使用一次且仅一次（once-and-only-once）或者重试直至成功（retry-until-success）的语义以允许可靠传输 HTTP 请求的机制。

There are simply no mechanisms built in that allow HTTP requests to be reliably delivered using once-and-only-once or retry-until-success semantics.

youdao