... distribution loss 配电损失,配水损失 distribution mains 配电总线,配电干线,配水总管 distribution manifold 分配联箱,分配总管,分配支管 ...
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secondary distribution mains 二次配电干线
primary distribution mains 一次配电干线
mains distribution box 干线配电箱
Mains Distribution Boards 接线板
The HSE investigation focussed on the possibility of a faulty gas distribution system and found the cast iron mains pipe was sunk in sandy-gravelly soil that was classified as "very aggressive" to "moderately corrosive".
BBC: Shrewsbury gas explosion 'no-one's fault' HSE concludes
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