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- Digital selective calling(DSC) forms the basis of distress alerting and safety communications. 数字选择性呼叫是遇险和安全呼叫的基础。
- exclusive digital selective calling frequencies 专用数字选择呼叫频率
- digital selective calling system 数字选择呼叫系统
- exclusive digital selective calling freq 专用数字选择呼叫频率
- Global maritime distress and safety system--Performance requirements for digital selective calling (DSC) equipment GB15215-1994全球海上遇险安全系统(GMDSS)数字选择呼叫(dsc)设备性能要求
- Set up City's Traffic Management System by Digital Selective Calling Technology in VHF 用甚高频数字选呼技术构建城市交通管理系统
- digital selective calling 数字选呼, 数字选择呼叫
- digital selective call 数字选呼
- Select call from the center menu to redial the number. 从中间菜单中选择Call重新拨号。
- Addressing a terminal or a component on a selective calling circuit. 对一个选择呼叫电路上的一个终端或一个部件进行寻址。
- Selected calling function of CTCSS mute VF coding or decoding(Eligibility). CTCSS哑音频编解码选呼功能（可选）。
- Digital Selective Communications 数字选择通信
- selective calling device and talking set 选叫通话箱
- Selective calling and talking box for dispatching 调度所选叫通话箱
- With today's more advanced digitizing methods, it is now possible to scan in amap, bring the scanned map into a GIS, georeference the scanned map, zoom in onthe screen and digitize select features. 在目前使用的更为先进的数字化方式下，我们可以扫描一幅地图，然后把扫描后的地图存入到一个地理信息系统，再对扫描图进行配准，这样就可以在屏幕上放大地图以及数字化选中的要素。
- HF channel evaluation and selective call system 高频信道鉴定和选呼系统
- selective call with single voice frequency 单音频选叫
- selective call with dual voice frequency 双音频选叫
- Most of the computers we are using are digital computers. 我们正在使用的计算机大多数是数字计算机。
- local line selective call telephone 区内选呼电话
