After converted into vitamin A, promote epithelial tissue integrity, to protect the trachea results.
转换成维生素A之后, 能促进上皮组织完整, 达到保护气管的效果.
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Normal epithelial tissue homeostasis is maintained by dynamic interactions between epithelial cells and their microenvironment.
正常上皮组织内部的动态平衡由上皮细胞与其微环境之间动态的相互作用来维持.
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