Alkyl diol silica (ADS) is a kind of restricted access media, which can be used for direct injection and analysis of complex biological samples containing bio macromolecules.

烷基二醇基硅胶(ads)系限进介质的一种，可用于含生物大分子的复杂生物样品的直接进样与分析。

youdao

This third-party repository gives us access to all kinds of non-free software such as Adobe Reader, Skype and codecs for restricted media formats.

第三方软件仓库给使我们可以获得非自由软件，例如adobe Reader, Skype和受限格式的解码包。

youdao

If you are viewing the site from outside the UK, you will be unable to access our live video streams and rights-restricted content and should see a message stating that this media is not available in your territory.

BBC: Your guide to the BBC Embedded Media Player

"Most social media are perfectly suitable methods for communicating with investors, but not if the access is restricted or if investors don't know that's where they need to turn to get the latest news, " said George Canellos, acting director of the SEC's division of enforcement, in a statement.

WSJ: SEC Says Companies Can Use Social Media to Alert Investors