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单词
backwater valve
释义
backwater valve
a valve for preventing flowing liquid, as sewage, from reversing its direction. Also called
backflow valve
.
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Pilcomayo
pilcrow
pile
pilea
pileate
pileated
pileated woodpecker
piled
pile driver
pile fender.
pileolated
pileolated warbler
pileous
pileum
pileup
pileus
pilewort
pilfer
pilferage
pilgarlic
pilgrim
pilgrimage
pilgrim bottle
Pilgrim's Progress
pili
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更新时间:2024/11/11 13:35:17