There are great different on resistance of conveyance of large discharge of PCCP between outside testing and lab testing about condition of testing and debugging methods.
大流量PCCP输水阻力室外测试与室内试验在试验条件和调试方法上是有很大区别的。
There are great different on resistance of conveyance of large discharge of PCCP between outside testing and lab testing about condition of testing and debugging methods.
大流量PCCP输水阻力室外测试与室内试验在试验条件和调试方法上是有很大区别的。
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