face feed
... extraction feedwater heating 抽汽给水加热 face feed 表面供料 face-down feed 背面馈送 ...
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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。
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.
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