valid request

If a valid response can be found in the browser cache, the browser displays the content to the end user without sending a request to the network.

如果可以在浏览器缓存中找到有效的响应，浏览器将不向网络发送请求，而直接将此内容向最终用户显示。

provided by jukuu

The Ajax requests are fielded by a PHP driver page, which makes sure that the request is valid and then passes it onto a database wrapper class that handles the request.

Ajax请求受到一个PHP驱动程序页的保护，该页先确保请求有效，然后将其传递到一个处理该请求的数据库包装类。

互联网摘选

Windows cannot find a valid certificate template for the request.

windows找不到申请的有效证书模板。

provided by jukuu

If CRC cannot run normally due to a breakdown, the passenger with a valid ticket has the right to request the CRC line operating unit to refund the original ticket price.

轨道交通因故障不能正常运行的，乘客有权持有效车票要求轨道交通线路运营单位按照原票价退还票款。

互联网摘选

You can specify the default action for this policy module when it receives a valid certificate request

如果收到一个有效证书申请，您可以为这个策略模块指定默认操作

互联网摘选