trunk dialing中文什么意思

〔英国〕长途电话拨号。

• trunk:    n. 1.树干 (opp. bran ...
• dial:    n. 1.日晷 (＝ sun-dia ...
• extension trunk dialing:    分机中继线拨号

例句与用法

1. Subscriber trunk dialling ( std ) is inaugurated in the uk by queen elizabeth ii when she speaks to the lord provost in a call from bristol to edinburgh
   1958年用户长途直拨（ std ）系统由英国由女王伊丽莎白二世举行开机典礼，她在一个从布里斯托尔到爱丁堡的长途拨叫中与对方城市的市长通话。