The cellular digital packet data (CDPD) is a system which borrows idle radio channels from the existing cellular mobile telephone networks for packet data transmission.

蜂窝数字分组数据(CDPD)是利用现有的模拟蜂窝电话网来传输数据的一种新技术。

youdao

A geographic area or zone surrounding a transmitter in a cellular telephone system.

围绕蜂窝式电话系统的发射器的地理区域。

youdao

As shown in FIG. 5, system 305 May be a cellular telephone handset, although the scope of the present invention is not so limited.

图5示出，系统305可以是蜂窝电话手持机，但是本发明的范围并不局限于此。

youdao

Steven Russell, director of Massachusetts General Hospital's Diabetes Unit and co-author of the study, the next step is for researchers to develop a portable system about the size of a cellular telephone.

VOA: standard.2010.04.15

Another selling point is the absence of the red tape usually involved in plugging in to Italy's telephone system, whether fixed or cellular.

ECONOMIST: Keeping in touch

The system would be modeled on a method used by cellular telephone service providers to warn each other about people who have a poor record of paying their bills.

CNN: Next wave of attacks against spammers underway

Svyazinvest's bosses will therefore have power over almost all of Russia's communications system (in many regions, the local telephone firms also hold the first cellular-telephone licences).

ECONOMIST: Russian privatisation