“频率计”造句

频率计不好用了, 需要更换.
The frequency meter is not in effectiveness, to be renewed.

数字频率计是一种基本的测量仪器.
Measurement of time - frequency electronic measurement is an important area.

介绍了数字频率计设计的基本原理.
This paper has introduced the basic principle of designing digital frequency meter.

• #频率计