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branch supply pipe /ˈbɹantʃ səplˈaɪ ˈpaɪp/ n

中文：供水支管

中文 · 供水支管Español · tubería ascendenteFrançais · colonne ascendante
Meaning：Pipe carrying the hot water to the radiators one floor above.
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Found in these illustrated scenes（1）

Forced hot water heating

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