research emphasis短语¹⁸⁰⁰⁹⁸⁺¹ 基本例句 研究重点 The spectrum allocation technology, which is one of the key technologies of cognitive radio, the research emphasis is how to manage the spectrum resource effectively. 认知无线电的频谱分配技术研究的是如何对检测到的空闲频谱资源进行有效的管理，是认知无线电系统的一项关键技术。591-lw