一些大型广告牌也采用了面部识别技术。
Facial detection technology is also placed inside some large advertising boards.
正如你开车经过的城镇，他们在盯着你从大型广告牌。
As you drive through the towns they stare at you from large billboards.
济南大型广告牌是发布时段长，是耐久地、全天候发布的。
Three, Ji'nan large billboard is released long period, is durable, all-weather release.
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