视网膜色素上皮(RPE)细胞位于视网膜感觉层和脉络膜之间，构成视网膜外屏障，在视网膜的代谢中起到重要的作用。
Retinal pigment epithelial (RPE) cells lie between the sensory retina and the choroids, constitute the outer blood retinal barrier and play a vital role in the retinal metabolism.
用作水性或含水的有机溶媒包衣，优良的成膜性和粘性，有较好的屏障作用，增加了抗压强度，减少碎片。
Water or water used for organic solvent coating, excellent film forming and viscosity, have good barrier, an increase of compressive strength, reduction of debris.
目的： 了解膈食管膜解剖学及组织学结构和特点， 探索膈食管膜在抗反流屏障中的作用。
Objective: The aim of the study is to elucidate the morphology of phrenoesophageal membrane(PEM) and assess its possible role in preventing gastroesophageal reflux.
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