The script is a filter, so it expects its input from the standard input and it writes the results on the standard output.

这段脚本是一个过滤器，因此它要从标准输入设备上获得输入数据，然后将处理结果写到标准输出设备上。

youdao

Embedded UI handlers allow package developers to still handle and filter messages before they are dispatched to the standard UI handler.

嵌入式的UI处理程序允许安装包制作者在分派安装包到标准UI处理程序之前，处理和过滤消息。

youdao

The extraction filter template file looks similar to a standard extraction filter file with a few exceptions.

除了一些例外，提取过滤器模板文件看起来同一个标准的提取过滤器文件很相似。

youdao

At meetings and conferences, filter-tipped cigarettes were standard features on the podium alongside writing pads, pencils and ashtrays.

CNN: China clouded in cigarette smoke