Cells in the secretory portion and duct have different electrophysiological phenomena. At normal condition, resting membrane potential of secretory cells was obviously higher than that of duct cells.

汗腺导管细胞和分泌细胞具有不同的电生理现象，正常状态下分泌细胞静息膜电位明显高于导管细胞。

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Objective to establish a human bile duct carcinoma model on the chick embryo chorioallantoic membrane (CAM) and study its morphological and biological properties.

目的建立人胆管癌鸡胚移植瘤模型，研究其形态学及生物学特性。

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The utility model provides a membrane-filtering back flushing device, and removes the pollution of a duct and a face caused by minuteness powder body through the liquid back flushing.

本实用新型提供了一种膜过滤反冲装置，通过液体反冲消除微细粉体对膜面及孔道的污染。

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