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Conferences
Referring to any meeting of people to discuss a particular topic.
Industry: Convention
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Conferences
頻率
Convention; Conferences
在時間上的事件的間距。音訊信號中頻率是指振動的迴圈重複。在電線,震動的是電氣的變化。在空氣中,振動的空氣壓力的變化。耳朵能聽到空氣壓力變化與頻率之間約 12 次每秒和 20 000 倍每秒 12 Hz (赫茲) 和 20 kHz ...
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