压力波动幅值 meaning in English

amplitude of pressure fluctuation

Author has investigated the air - volume affect the pressure oscillation in piping system from converse viewpoint . when the structure parameters of the air - volume are some certain value , the pressure oscillation in the exit of the piping system is magnified . this idea makes us a new way to design the power source of high pressure water - jet
研究表明：当设计的空气室结构参数(空气室的容积，安装位置等)取某组数值时，管道出口端的压力波动幅值远大于系统输入压力波动幅值，从而为设计高压脉冲水射流的动力源提供了一条新的思路。