In right enlarged picture, the length and width of major axis, center and range of tunnel of ACL, AM and PL were indicated.

右下角为放大的止点照片，分别标记了ACL、AM和PL止点的纵轴长度、宽度、骨道中心点及范围。

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A digital video frequency surveillance system is designed and implemented. The system is consisted of video frequency server based on embedded pl ATform, PC-based control center and client.

设计和实现了一个嵌入式视频监控系统，系统由基于嵌入式平台的视频服务器、基于PC机的控制中心和客户端组成。

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