The human face tracking procedure for face recognition to track positioning direction.

说明：本程序为人脸追踪，适合人脸识别追踪定位方向。

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Local workmen were blasting the rock face beside the track in order to make it wider.

当地工人正在用炸药炸开小路旁边的岩石面以便将其拓宽。

《柯林斯英汉双解大词典》

The Web browser is the face of XML processing for most users and developers, so this series will continue to track and detail features within the latest Firefox versions.

对于多数用户和开发人员来说，Web浏览器是XML处理的脸面，本系列文章讲继续追踪和讨论最新Firefox版本的相关特性。

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Now pubs not using plastics on busy nights would face a fast track review of licensing conditions which force their use full time, police said.

BBC: Nottinghamshire pubs warned to use plastic glasses

But I am looking for a more intuitive device that will use face-recognition technology to track my ever move with the camera.

FORBES: CES: A New Must-Have Device For Bloggers

They are portfolios that must be continuously maintained by real people who face difficult issues when trying to track an index.

FORBES: Passive Investing Doesn't Exist, But So What?