说明：  摄像机是整个监控系统的核心设备，选型时应根据现场环境和用户需求，慎重选择。针对摄像机产品，就各种类型摄像机的选用原则做以下简单说明，希望对您的项目有所帮助.
(The camera is the core of the whole monitoring system equipment, selection shall be based on the scene environment and user needs, carefully chosen. Products for the camera, on the principle of selection of all types of cameras to do the following simple description of the item you wish to be helpful.)