英译中:Portable data terminal(PDT)
In most wide area networks, the communication subnet consists of two distinct components:transmission lines andA.networtsB.switching elementsC.computersD.data terminal equipment
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OMC命令终端中,进行配置数据备份的命令是『____』,备份文件的后缀名为『____』。( In OMC command terminal, the command to backup configuration data is『____』,and the suffix name for backup file is『____』.)
In data communication, data link is those parts of two data terminal equipments that are controlled by a protocol along with the(71) data circuit, which together enable data(72). So-called protocol means, in short, a set of rules that determines the behavior. of functional units in achieving communication.Data circuit, however, consists of a pair of(73) transmission channels that provides a means of two-way data transmission. Between data switching exchanges, the data circuit may or may not include data circuit-terminating equipment (DCE), depending on the type of(74) used at the data switching exchange. Between a data station and a data switching exchange or data concentrator, the data circuit includes the DCE at the data station end, and may include equipment(75) to a DCE at the data switching exchange or dam concentrator location.A.handshakingB.interconnectingC.linkageD.joining
数据终端设备(DTE://Data-Terminal-Equipment)。
英译中:Portable Data Terminal
S1301的压差测量仪表是()A、PDT1322B、PDT1347C、PDT1341D、PDT1344
英译中:Automatic Data Collection