With the prevalency of multimedia message service in wired network, matured imformation service in wireless network is still restricted within text message.

目前其服务内容正从简单的纯文本信息拓展到由图片、声音和文字合而成的多媒体信息，其覆盖范围正从有线网络延线网络。

Using smart antenna can expand capacity, enlarge coverage area and reduce error rate in the case of not increasing system complexity indistinctively.

使用智能天线可以在不显著增加系统复杂程度的情况下扩容量、加大覆盖范围、降低误码率。

East the coverage area bigger topicality economic integration organization in the South African common market, Kenya and gains the credit aspect score in the planning permission to be also highest.

在覆盖范围更大的地区性经济一体东南非共同市场内部，肯尼亚在建筑许可和获取信贷方面的得分也最高。

An L-band safety remote control system is introduced which is composed of three stations and one center in order to increase coverage and overcome the limit of earth curvature to intervisibility.

本文介绍一种L频段安控系统,它由“三站一中心”成,用三站线接力的方法来提高覆盖范围并解决地球曲率对通视的限制。