community exchangerural exchangerural telephone exchange
... 农村义务教育: compulsory education in rural areas 农村电话局: community exchangerural exchangerural telephone exchange 无绳交换机: cordless switchboard ...
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community exchangerural exchangerural telephone exchange
社区交换机交换机电话交换机
以上为机器翻译结果，长、整句建议使用 人工翻译 。