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石管
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DEFINITIVE EXAMPLES 权威例句
〔stone canal〕
A calcareous duct in echinoderms that leads from the madreporite to a ring-shaped canal around the mouth.
石管
:棘皮动物体内由筛板通向口部附近环状管道的钙质的导管
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zone defence
zone of aeration
zone out
zoned
zones
zoning
zoning law
zoning ordinance
zonk
zonk out
zonked
zonked out
zonked-out
zoo
zoo keeper
zoo-bred
zoo-keeper
zoogenic
zoogeographic
zoogeographic region
zooid
zooids
zookeeper
zoological
zoologist
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更新时间:2026/7/4 1:19:16