罗盘导线测量
- Dialling tone sound heard on the telephone showing that one can begin to dial the number wanted
(电话内传出表示可拨号的)拨号音.收藏 - Subscriber trunk dialling
用户长途电话直拨系统.收藏 - Put in the money before dialling.
拨号之前先放钱进去。收藏 - The dialling/ringing tone
表示可以拨号的嗡声[对方电话的振铃声]收藏 - The dialling code for the London area is 01.
伦敦地区的电话区号是01.`收藏
开心词场背单词

