Some ring gear assemblies have an excitor ring, used in antilock brake systems.

不管厂家采用“促”措辞或媒体采用“降”，市场终端产生的效果是一样的。

As a kind of design of promotion flackery, the design of real estate description focused on the apparent functions but ignored the study of systematic theories which even was blank in the past.

楼书设计作为促宣传品设计的一支，以往只重视表面化的功能而身缺乏理论系统的研究，甚至是一个空白。楼书设计进入我国的时间比较晚，但是发展迅猛。