The material surface image screened by a CCD camera was processed to calculate the level of material by a computer, and then to control the valve of material container.
由CCD摄像头拍摄容器内物料表面图象，经计算机处理后得到物位高度，进而控制物料容器的供料阀门。
When they are put into a simple container, a tiny web camera watches their actions.
它们被放入一个普通的容器，一台小型网络相机会观察它们的反应。
When they are put into a simple container, a tiny web camera watches their actions.
它们被放入一个普通的容器，一台小型网络相机会观察它们的反应。
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