Please verify that the communications line is connected and active.

请检查通讯线路是否连通并处于活动状态。

youdao

Most traffic accidents occurred on vital communications line, roadways without footpath and roadways without traffic control.

在交通环境中以城市主干道、混合式道路和无交通控制道路多发。

youdao

A system that is linebound, for example, is limited in performance by the speed at which information can be transmitted over the communications line.

例如，一线路限制系统在通信线路上传送信息的性能受速度的限制。

youdao

South Korea's Defense Ministry said Tuesday it had received no such ultimatum officially, noting that there is no communications line between the two Koreas.

NPR: NKorea, Marking Leader's Birthday, Shows More Ire

Sponsors assume no responsibility for any error, omissions, interruption, deletion, defect or delay in operation with transmission, communications, line failure, theft or destruction or unauthorized access to or allegation of submissions.

CNN: Legal Disclosures

Among other provisions, the ECPA stipulated that wireless voice communications were covered under the Fourth Amendment to the same degree as land-line communications.

CNN: Rewriting the fourth amendment