Background and Objective: the gap junction plays an important role in the exchange of nutrients, ions, and regulatory molecules between cells.

背景与目的：间隙连接在细胞间的营养物质、离子和细胞调节因子的交换中起重要作用。

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With 60 junction lines, the telephone communication system will operate by virtual exchange. The Exhibition Hall is equipped with IC telephones.

电话通讯系统采用虚拟交换局方式，中继线60条，展馆内外采用ic卡。

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