| 术语 | cellular radio |
| 释义 | cellular radio 细胞式［蜂窝式］无线电通讯 A mobile communications service that offers sharply expanded mobile phone service by dividing an area into many small districts or “cells”, each with its own transmitting stations. Sophisticated computer technology automatically switches a caller from one radio frequency to another as the caller moves from cell to cell. The mobile units can be carried in automobiles, around the home or office, orwalking down the street. 一种移动式无线电通信设施。通过把一个区域分成许多小区,而每个小区都装备发射台,从而明显地扩大了移动电话的服务范围。当呼叫用户从一个区移到另一 个区时,先进的计算机技术能自动地把呼叫用户的使用频率切换到另一个频率。移动式的收发装置可 由用户随身携带到汽车里,或在家里、办公室里走动时以及漫步街头时使用。 |
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