求翻译：首先介绍了WCDMA系统的系统特性以及系统结构，介绍WCDMA的关键技术及技术特点，其次介绍了基站设计的工程原则，从选址原则到选址步骤。是什么意思？

First introduced wcdma system characteristics and system architecture, introduced the wcdma the key technologies and technical features, followed by a base station design, engineering principles, to the location step from site selection principles.

First introduced by WCDMA system features of the system structure of the system, as well as the key technology introduced WCDMA and technical features, followed by the base station design engineering principles, principles from site selection to site selection procedure.

First introduced the WCDMA system system performance as well as the system structure, introduced WCDMA the key technologies and the technical characteristic, next introduced the base depot design project principle, from selected location principle to selected location step.

First introduced the system of WCDMA system characteristics and system structure, introduction of WCDMA technology and technical characteristics, then introduces the base station design of engineering principles, principles for the selection to the location step.

正在翻译，请等待...