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Digital Multiplex System

electronic telephone switch model series

en-US/ˈdɪd͡ʒətəl ˈmʌltəˌplɛks ˈsɪstəm/
en-GB/ˈdɪd͡ʒɪtl ˈmʌltɪplɛks ˈsɪstəm/

分类：

telecommunications devicemodel series