Impacts on asphalt mixture's high temperature performance with PR series additives added by means of rutting test and Repeated Shear Test (Constant Height)(RSCH) were investigated.

选用车辙试验和恒定高度重复剪切试验（RSCH）来进行掺加PR系列添加剂沥青混合料的高温性能研究。

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UCCA has initiated a series of talks with leading advertising or PR professional to decode the secrets of big brands' success and understand what makes them so inspiring.

UCCA 将开始一个全新的系列讲座“爱品牌”，带领观众与主流广告媒体、职业公关一起解密大品牌的成功和他们不竭的灵感之源。

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The present invention relates to an electrical device (Fig 6) having a programmable resistor (pr) connected in series to a punch-through diode (s).

本发明涉及一种电气器件(图6)，其具有与穿通二极管(S)串联连接的可编程电阻器(PR)。

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In exactly the same way, CEOs who believe in Public Relations often derive better results from it not because of the power of faith but because those CEOs also happen to be taking a series of other actions that help PR programs deliver amazing results.

FORBES: 4 PR Habits of Highly Effective CEOs

Yahoo has had a series of ego-driven leaders more focused on themselves, their compensation, their positioning and PR for the last decade.

FORBES: What Yahoo Should Do