Effective research and surveillance programmes are needed to detect types, frequency and clinical Settings of such events.
需要有效的研究和监测规划以查明这类事件的类型、发生频率和临床环境。
To determine the frequency and nature of childhood injuries and to explore the risk factors for such injuries in low-income countries by using emergency department (ED) surveillance data.
利用急诊室的监测数据确定低收入国家儿童受伤的频率和性质，并探讨造成此类伤害的风险因素。
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。
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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