automatic telephone exchange
常见例句
- Formation of Strowger Automatic Telephone Exchange.
史端乔 式自动 电话交换机形成。 - CK series marine automatic telephone system is application for all kinds of vessels; It support automatic exchange service for auto telephone.
CK 系列船用程控电话系统是为大、中、小型舰船提供整船内部电话服务的设备。
hzhuayan.com - Invention of 1,000 line switch with disc bank having ten concentric rows of line contacts. Not used commercially. Formation of Strowger Automatic Telephone Exchange.
发明1，000寻线机，其排线架拥有10排线路连接。但是并没有投入商业使用。史端乔式自动电话交换机形成。
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