exchange line

1.

用户线

商务口译邮电通信词语_陆海鸣吧_百度贴吧... ... 内/外线 inside/ouside connection 用户线 exchange line 占用线 busy line ...

2.

交换线路

http://www.ptsgi.com/chinese... ... "交换价值"," Exchange value" "交换线路"," Exchange line" "交换机"," Exchange" ...

3.

通局线

55???? ... 换跳 exchange jump 通局线 exchange line 互换反应 exchange reaction ...

英汉

1.	用户线商务口译邮电通信词语_陆海鸣吧_百度贴吧... ... 内/外线 inside/ouside connection 用户线 exchange line 占用线 busy line ... post.baidu.com\|基于10个网页
2.	交换线路 http://www.ptsgi.com/chinese... ... "交换价值"," Exchange value" "交换线路"," Exchange line" "交换机"," Exchange" ... www.guandang.com\|基于3个网页
3.	通局线 55???? ... 换跳 exchange jump 通局线 exchange line 互换反应 exchange reaction ... www.docstoc.com\|基于 1 个网页