对于测量煤泥、纸浆、污泥等高浓度粘稠物料在输送管道中的压力，普通的压力传感器不能适用。
The pressure of viscous materials with high concentration such as coal slurry, paper pulp, waste mud in the transportation pipeline can't be measured by common pressure sensors.
废水输送和污泥量通过蠕动泵和定时器来控制。
Both wastewater feeding and sludge wastage were controlled by peristaltic pumps and timers.
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