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喷灌管道属于压力管道。它与其它压力管道一样,当管内流速(或者流量)发生变化时,将引起压力管道内的压力脉动(水击)。当压力增量(绝对值)超过了允许范
Irrigation pipe belongs to the pressure pipe. Like other pressure pipes, it will cause pressure pulsation (water hammer) in the pressure pipe when the flow rate (or flow rate) in the pipe changes. When the pressure increase (absolute value) exceeds the allowable range