数字谱 meaning in Chinese

numerical notation

There is also a system of numerical notation that , for some purposes , has replaced traditional character notation , for example in china and japan
也有一种数字谱，因为某种需要，替代了传统的字母谱，例如在中国和日本。
In order to simplify the output spectrum analysis of dds , we build a dds simulation platform . the results of simulation proved that the optimizing methods we used are very useful , and an improvement about 30 db was got in the dds digital output spectrum
同时，搭建了dds仿真平台，使得对dds频谱的分析大为简化，并进行了大量的仿真分析，证实了所采用的优化设计方法对输出信号数字谱的改善达到了30db以上。