| 单词 | imperforation | 
| 释义 | imperforation听听怎么读 
                            英 [?mp?:f?'re???n]
                         
                            美 [?mp?f?'re???n]
                         是什么意思 封闭状态,无孔的东西; 学习怎么用 权威例句imperforationimperforation[Upper anal imperforation, treatment and results][Congenital imperforation of the nasolacrimal canal]Imperforation of the nasolacrimal duct as a cause of nasal obstruction in the newborn.IMPERFORATION OF THE LACHRYMONASAL DUCT IN THE NEW-BORN, AND ITS CLINICAL MANIFESTATIONS.[False ranula of the newborn or imperforation of Wharton's duct]From the Mermaid to Anal Imperforation: The Syndrome of Caudal RegressionMonocanaliculonasal and/or monocanalicular intubation assembly, mainly for nasolachrymal imperforationGiant fecaloma in an adult with severe anal stricture caused by anal imperforation treated by proctocolectomy and ileostomy: report ... | 
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