exchange line
英
美
- 用户线
双语例句
- New charges proposed by the regional Bell holding companies to supplement subscriber line charges.
地区贝尔控股公司提议增加新的收费以补充用户线收费。 - A private telephone exchange that automatically connects internal "branch" lines to the external circuits of a telephone system.
一种自动地将内部用户线连接到电话系统外线的专用电话交换机。
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