所有管道建设都包括投产运行前对竣工管道的试验。
All pipeline construction includes testing the completed pipeline before it is put into operation.
水管连接好后，我们建议在试运行前应做密封性试验。
We suggest to do sealed test before trail run after water pipe was linked.
水管连接好后，我们建议在试运行前应做密封性试验。
We suggest to do sealed test before trail run after water pipe was linked.
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