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单词
back vent
释义
back vent
noun
:
a ventilating pipe attached to a waste pipe on the sewer side of its trap to prevent siphonage
back venting
noun
Word History
First Known Use
1915, in the meaning defined above
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pactum donationis
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pactum illicitum
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pactum legitimum
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pactum praetorium
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pad
pad dyeing
pad eye
pad hook
pad roll
pad room
pad saw
pad thai
Padang
padangs
padauk
padauks
Padaung
padaungs
padcloth
Padda
paddae
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更新时间:2025/3/31 15:08:24