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单词	portland-pozzolan cement
释义	portland-pozzolan cement noun : a portland cement to which pozzolana is added during the grinding of the cement clinker Word History Etymology portland cement + pozzolana
随便看	sand shilling sand skink sand skipper sand smelt sand snake sand snipe sand sole sand spout sand spurrey sand spurry sand squeteague sand star sand sturgeon sand sucker sand swallow sand table sand tiger shark sand trap sand trout sand tube sand up sand verbena sand vine sand violet sand viper

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