该情况发生于角膜上皮的完整性受到破坏时。
They occur when there is a breakdown in the integrity of the corneal epithelium.
但是，至今尚未发现食管癌的易感基因，食管上皮的癌变分子机理仍未明确。
However, the susceptibility gene (s) of esophageal cancer has not been identified so far.
狐狸穿上皮囊，然后径直走向他的老家。
毛重是指商品本身的重量加上皮重，也就是净重和皮重的总重量。
Gross weight is the sum of total weight of the commodity itself and the tare.
值得注意的是上皮细胞呈现其原本的粉红色高柱状。
Note the tall, pink, columnar nature of the epithelial cells.
纳什小姐穿上皮大衣，以防止寒冷。(防止的对象是寒冷)。
上皮细胞的侧面有连接复合体。
结论大鼠骨髓间充质干细胞对生精上皮放射性损伤的修复可起重要作用。
Conclusion MSCs can play an important role in repair of radiation injury of spermatogenic epithelium.
染片中只观察到有大量的上皮细胞。
Nothing but a great many epithelial cells was observed in the stain.
目的：研究中耳胆脂瘤上皮细胞增生和凋亡的状态。
Objective: to study the state of proliferation and apoptotic cell death in cholesteatoma.
目的：研究淋巴上皮样癌（LELC）的本质特征。
目的：采用流式细胞术分析胆脂瘤上皮细胞的DNA特征，探讨胆脂瘤的病理学属性。
Objective: to compare the DNA character with in cholesteatoma tissues with that in normal skin.
目的：探讨过氧亚硝基阴离子(ONOO-)对气道上皮细胞的损伤作用。
AIM: To study the effect of ONOO - on the airway epithelial injury.
目的：探讨过氧亚硝基阴离子(ONOO-)对气道上皮细胞的损伤作用。
AIM: To study the effect of ONOO - on the airway epithelial injury.
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