watching brief

noun

1. （尤指对政治组织的）监视，监督
   the task of watching a group, especially a political organization, to make sure that it is doing everything it should and nothing wrong or illegal

1. English Today& A Watching Brief [ 6]
   当代英语&观察简报[6]
2. The first part introduces the Remote Watching and the basic theory of Video Compression which is one of the important steps. The basic components of Video Compression and some techniques usually used are also introduced. Then a brief introduction of international standard MPEG is presented.
   第一部分介绍了电力系统遥视技术以及其中的关键技术&视频压缩的基本理论，对视频压缩编码的基本组成部分和一些常用的技术做了概述，并且介绍了国际视频压缩编码标准MPEG。