Actually, in the tube engineering, the proportion of the loss of local water head in the loss of pipeline water head is big.

在实际管道工程中，阀门阀道的局部水头损失占管路水头损失的比例是相当大的。

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Ulteriorly, considering the local head loss in inlet opening and pipes junction plays more important role in the calculative results of water hammer pressure calculation of the short pipeline system.

考虑进口及多管道连接处的局部水头损失对短管道系统水击压强的计算结果影响较大。

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The Liaohe oilfield Tai-Kui pipeline route area is located in the Liaodong Bay head tidal channel area.

辽河油田太—葵管道路由区位于辽东湾顶潮汐水道区。

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The recipient of oil who has contracted to use the pipeline is committed to buying from producers at the head of the pipeline.

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