下一步就是一级沉淀池，污泥沉淀到底部，轻质液体例如油脂、油和皂类浮到上面。
Next up is the primary sedimentation tank, where sludge settles to the bottom and lighter liquids like grease, oil and soap rise to the top.
液体燃料。轻质烃中硫的定性测定。铅酸盐法博士法。
Liquid fuels. qualitative investigation of sulphur in light hydrocarbons. plumbite method doctor test.
其操作原理基于液体体积的测量，通过轻质制动盘、红外传感仪以及复杂的电子器件，将流量转化为标准的线性输出信号。
The operating principle is based on the liquid volume measurement through lightweight rotor, IR sensor, and sophisticated electronics converting flow rate into a standard linear output signal.
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