H系列前护栏的波浪式设计使得其声调清楚突出，却又不至于影响音讯的传送。
The undulating front grille that gives the H series its unmistakable accent was conceived in such a way as not to influence the audio transmission.
第六步：所内内业人员将对护栏板维修复前、后照片及安全控制区的影像资料进行归档整理。
The sixth step: the inner industry staff will conduct image data of the guardrail maintenance complex before and after photos and security control areas of filing.
第五步：维修人员必需对护栏板进行维修复前、后拍照，布置安全控制区要全程摄像。
The fifth step: maintenance personnel must be repaired before and after the guardrail plate, the layout of the security control area to the whole camera.
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