n.异位（器官等的位置异常，一般是先天性的）...

ectopia的音标：ectopia的英式发音音标为：[ek'təʊpɪə]ectopia的美式发音音标为：[ek'toʊpɪr]...

Objective To explore the value of meal examination in cartilaginous tracheobronchial ectopia of the esophageal wall.目的探讨食管壁内气管软骨异位症钡餐检查的价值.Ectopia plant was much less in tissue lump embedding group, and the tumors were u...