英语词汇“筆石”的翻译、意思、用法、释义-英汉汉英双解词典-爱贷网

词汇	筆石
释义	筆石 bǐ shí古代的一種體內有骨骼的無脊椎動物，形體很小，生活在平靜的海洋中，構成羽毛狀或鋸齒狀的羣體。頁巖中常有它的化石，是劃分和對比地層的重要化石之一。
随便看	sanitary airport sanitary analysis sanitary analysis antigenic sanitary and antiepidemic sanitary and anti-epidemic affair Sanitary and anti-epidemic affairs sanitary and antiepidemic station Sanitary and anti-epidemic work sanitary anti-epidemic team sanitary apparatus sanitary appliance sanitary arrangement SANITARY arrangements for vehicles SANITARY arrangements in aircraft SANITARY arrangements in rail vehicles sanitary article sanitary authorities sanitary authority sanitary bactedology sanitary bacteriolog sanitary bacteriology sanitary ball weld check valve sanitary base Sanitary behavior sanitarybelt