Based on the compressibility of liquid, through the mechanical mean can translate the small linear displacement into higher pressure.
利用液体的可压缩性，通过机械方法，可以使微小的直线往复运动获得较大的压强。
2
Surface liquid yield measurement using dynamometer card (SLYMUDC) is a method of computing surface liquid yield of Wells by analyzing polished rod load and displacement.
示功图量油就是通过对悬点载荷与悬点位移进行分析，计算井口产液量的一种方法。
3
Electric - machine conversion component is indispensable of the control system of the electric liquid. It transforms the electric signal into mechanical mete - force (moment) and displacement.