单词	anti-siphonage vent
释义	anti-siphonage vent back vent back vent An individual vent for a plumbing fixture located on the downstream (sewer) side of a trap, 1 to protect the trap against siphonage.
随便看	niðhoggr niðhöggr niðingr niña niño niõ niþ niš n&j n.j. nj nj-1 dmat nja njaa njaadac njaaleoa njaas njab njabl njabr njac njacac njacc njaccrra njace

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