blocked currency meaning in English

冻结货币
封存货币
管制通货
限制使用范围的货币

The basis idea of software radio ( srd ) is to place the a / d and d / a close up the antenna as possible as and use software to realize all the function of any radio based on an opening and blocking currency hardware platform
软件无线电的基本思想是将宽带a / d及d / a尽可能靠近天线,将无线电台的各种功能在一个开放性、模块化的通用硬件平台上尽可能多的用软件来实现。