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在中药提取罐气动线路上,一般采用手动二位四通阀控制及电动电磁阀控制两种。现对手动二位四通阀控制线路进行一些改进。见图。
In the Chinese medicine extraction tank pneumatic line, the general use of two-way manual four-way valve control and electric solenoid valve control of two. Now manual two four-way valve control circuit to make some improvements. See figure.