前，后十字韧带完好无损正常的信号强度。
The anterior and posterior cruciate ligaments are intact with normal signal intensity.
语音增强技术一直是语音信号处理中的重要课题之一，语音增强的目的是从有噪声的信号中尽可能完好地恢复原始声音。
The speech intensified technique is an important lesson in the speech signal processing. The purpose is to get back speech signal from the signal containing noise.
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