流量计。VRML语言三维模型。可以用JAVAscr ipt编程，互动。-Flowmeter. The three-dimensional model of VRML language. Can use JAVAscr ipt programming, interactive.

自相关仿真,波形采用仿真的超声流量计波形，用去噪声的去相关-Simulation, autocorrelation waveform using the simulation waveform of ultrasonic flowmeter, go with noise