The pressure range of gas transmission and distribution network, network type, valve arrangement, pipe diameter arrangement, etc.

燃气输配管网的压力级制、管网型式、阀门配置和管径配置等是管网结构因素。

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And Bord Gais also owns the gas transmission pipelines to the northwest and south which are not affected, but the distribution network to the 10 towns feeding off those pipelines is part of the likely sale.

BBC: Irish government's 3bn euros sale