数字频率计是一种基本的测量仪器。
The digital cymometer is a kind of basic measuring instrument.
全功能数字频率源。
Finally, the complete digital frequency source is introduced.
采用直接数字频率合成(DDS)技术，实现波形发生器。
It also presents the realization of wave form generation with DDS technology.
当然随着故事的进展，圣·约翰·里弗斯的名字频频出现。
John Rivers' name came in frequently in the progress of my tale.
当然随着故事的进展，圣·约翰·里弗斯的名字频频出现。
John Rivers' name came in frequently in the progress of my tale.
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