在高速柴油发动机喷油系统性能检测中，一般以燃油压力信号作为喷油系统性能检测参量。

The fuel pressure signal was considered as the performance testing parameter of the spray system in high speed diesel engine performance testing.

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车辆液压动力转向系统通过伺服阀控制压力油的方向和流量，把转向盘输入的转角信号转变为车轮的偏转角度输出。

Vehicle power steering systems control direction and flow of pressure oil with servo valves, then transfer angular inputs from steering wheels to corner angular outputs of road wheels.

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通过选用六种不同的小波函数，对柴油机喷油系统压力波信号的时频特性进行了小波分析研究。

In this paper, six wavelet functions were selected for the analysis of time-frequency characteristics of the pressure wave signal in fuel injection system of a diesel engine.

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