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Also known as the mucosa , your stomach lining plays a key role in helping you digest food .

众所周知，胃粘膜在人的消化系统中扮演重要角色。

Sublingual administration is a simple and effective way of substantially raising blood levels by absorbing b12 through the oral mucosa .

舌下含服是一种简单有效的方式，可以通过口腔黏膜吸收b12从而大幅度提高血液中的水平。

Ultrastructure of human olfactory mucosa after radiotherapy .

放疗后嗅粘膜超微结构观察。

The stomach mucosa was irregularly blackened .

胃粘膜成不规则状变黑。

There is a tender swelling beneath the right buccal mucosa .

右侧颊部粘膜下，有带痛的肿胀。