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A practical circuit is also given.
文中还给出了实用电路。
youdao
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The circuit is simple and practical, a good effect is obtained in practice.
电路简单实用，在实际应用中取得了良好的使用效果。
youdao
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The circuit is simple and practical, a good effect is obtained in practice.
电路简单实用，在实际应用中取得了良好的使用效果。
youdao