process box meaning in English

处理框
工作框

There is no physical location marked in the process boxes
没有把实际位置标示在程序方格内。
In the frequency - domain , by referencing of the result of software radio , adapting the process method of digital signals , e . g . interpolate and extraction , and using the matlab signal process box , the experiment of hybrid filter banks ( hfb ' s ) applied in dso is made with computer
在频域，引用软件无线电研究成果，应用抽取、内插等数字信号处理方法，用matlab信号处理工具箱完成对频域带通取样变换方法应用于宽带存储数字示波器的仿真实验。