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。
The two virtual narrators, German boy Jens and Chinese girl Yan Yan, will interact with visitors in the exhibition hall.
两个虚拟讲解员——德国青年“严思”和中国女孩“燕燕”，与参观者在展厅内互动。
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