结论超声激励脉冲编码技术是一项有价值的诊断技术，对RA和OA的诊断具有高度的特异性和敏感性。

Conclusion: Ultrasonic excitation of pulse code is helpful and therefore has a high specificity and sensitivity in the diagnosis of ra and OA.

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在多带激励低速率语音编码研究中，本文依据动态规划技术原理，提出了一种有效而实用的前后各看一帧的双向基音跟踪平滑算法。

In the study of MBE speech coding, a new efficient practical look-back and look-ahead pitch tracking smoothing algorithm is presented based on the dynamic programming approach.

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