河北省人口主要是汉族，另外，还有蒙古放、满族和回放等。
The population of Hebei Province is mostly Han Chinese with minorities of Mongol, Manchu, and Hui Chinese.
离线存储、地理位置、画板图形和视频/音频回放等在当前的智能手机中都享有广泛的支持。
Offline storage, geolocation, canvas graphics, and video/audio playback all enjoy widespread support among modern smarpthones, for example.
本系统实现了对视频数据的采集，编码（MPEG-4），检索回放等视频服务器的基本功能。
The basic functions of video monitoring system, including video data acquiring, encoding (MPEG-4), searching and playing back are accomplished by this system.
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