城市气体消耗少时,向城市的供气量小于干线的流量(也即末段起点的流量),多余的气体积存在末段管路中,使末段的压力上升。When urban gas consumption is low, the gas supply to the city is less than the flow of the trunk (i.e. the flow at the beginning of the last section), and the excess gas is stored in the last section of the pipeline, causing the pressure at the last section to rise.

时间:2023-12-23 11:46:11

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