front reaction meaning in Chinese

前端反应
前屏蔽

This it is one that is it is it examine human intellectual advertisement of infrared light report the broadcaster to detect automatically to have , when coming into copies of machine front reaction , 3m 60 of cornering in the range , machine is it is it store advertising short film or product introduction inside memory card to broadcast to begin automatically as someone , prove , wait for the content
这是一台具有自动侦测人体红外光的智能广告报告播放机，当有人走进本机正面3m 60角的感应范围内时，机器将会自动开始播放存储在记忆卡里面的广告短片或是产品介绍，说明，等内容。