automatic exchange〔名词〕自动电话局,自动交换局,自动交换机详细»
automatic exchange自动交换(机)详细»
automatic exchange〔名词〕自动电话局,自动电话交换机详细»
automatic exchange〔名词〕自动变换,自动交换机详细»
automatic exchange〔名词〕自动电话局,自动电话机详细»
自动交换机automatic exchange;automatic switchboard;automatic switching equipment;automatic switching unit详细»