名词
中文翻译：脉冲音
同义词：
['pulse tone', 'pulse tone modulation']
例句：
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1. The phemitone was used to control the speed of the motor.
脉冲音用来控制电机的速度。
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2. The phemitone was used to enhance the sound quality of the recording.
脉冲音被用来提高录音的声音质量。
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3. The phemitone was used to create a unique sound effect in the game.
脉冲音在游戏里创造了一种独特的音效效果。