automatic telephone exchange

常見例句

Formation of Strowger Automatic Telephone Exchange.
史端喬式自動(dòng) 電話交換機(jī)形成。
CK series marine automatic telephone system is application for all kinds of vessels; It support automatic exchange service for auto telephone.
CK 系列船用程控電話系統(tǒng)是為大、中、小型艦船提供整船內(nèi)部電話服務(wù)的設(shè)備。
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.
發(fā)明1，000尋線機(jī)，其排線架擁有10排線路連接。但是并沒(méi)有投入商業(yè)使用。史端喬式自動(dòng)電話交換機(jī)形成。
http://dj.iciba.com