I have here a tuning fork which generates 4,000 Hertz, a very high frequency.
这个音叉，产生4000的赫兹，一个很高的频率。
The feasibility was studied for the tuning fork to be used as Space Frequency Modulator for the use of measuring the depth of plate.
本文对用音叉作为空间频率调制器的可行性进行了研究。
The feasibility was studied for the tuning fork to be used as Space Frequency Modulator for the use of measuring the depth of plate.
本文对用音叉作为空间频率调制器的可行性进行了研究。
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