求翻译：3）使用CDMA网络，运营商的投资相对减少，这就为CDMA手机资费 的下调预留了空间；4）因采用以拓频通信为基础的一种调制和多址通信方式，其容量比模拟技术高10倍，超过GSM网络约4倍；5）更为重要的是，基于宽带技术的CDMA使得移动通信中视频应用成为可能，从而使手机从只能打电话和发送短信息等狭窄的服务中走向宽带 多媒体应用。是什么意思？

3) use the cdma network operator's investment is relatively reduced, which set aside space for cdma mobile phone tariff reduction; 4) the use of a modulation and multiple access communication Billiton frequency communication capacity than analog high technology 10 times, about 4 times more than gsm

3) use CDMA network, operators, and the relative investment reduce CDMA for mobile phone charges for the reserved space, and 4) resulting from the introduction to topology-based communication is a modulation scheme and multi-site communications, its capacity than the analog technology, 10 times high

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3) using CDMA network, operators of investment relative reduced, this on for CDMA phone tariff of cut reserved has space; 4) due to used to extension frequency communications for Foundation of a modulation and more site communications way, its capacity than simulation technology high 10 times times,

正在翻译，请等待...