[讯] exchange board; switchboard◇交换机插塞 switch-plug; 交换机灯 switchboard lamp; 交换机电缆 switchboard cable; 交换机故障 exchange fault互换,交换;交换机: interchange交换,交换机: exchange交换,交换机,交换所: exchange交换机交换局: exchange ex包交换机: packet switching exchange下载手机词典可随时随地查词查翻译