super audio frequency 超声频
super-audio-frequency modulated continuous waves 超声调制波
To reduce electromagnetic noise it chooses super-audio frequency PWM master frequency.
选用了超音频主振频率,可降低电磁噪声。
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Using super decode-king to obtain multimedia audio-video frequency material from VCD and some files is an effective method to make up the shortage of audio-video material.
利用《超级解霸》，从物美价廉的VCD影碟或其它影文件上抓取影视材料，来丰富多媒体影视素材源，是一种行之有效的弥补影像视素材有限的方法。
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