The result is accord with geological sample and sediment chart, so this method can be applied on sediment classification of narrow-band pulse echo sound signal.
分析结果与地质采样结果及海图均吻合，说明本文提出的方法应用于窄带脉冲信号的海底底质分类是适用的。
Appendix contains Linying dialect vocabulary and classification of recorded sound corpus.
附录包含有临颍方言分类词表和语料记音。
The results show that this method can characterize various heart sounds in time-frequency domain, and establishes the basis for the classification and recognition of heart sound.
结果表明，该分析方法能够很好地表征心音的时频变化特性，为后续实现心音的分类与识别提供了参考。
Chapter two reviews the classification of stress and analyzes the correlation between motivation and stress. Chapter one and chapter two lay a sound theoretical foundation for this research.
第二章阐述了有关压力产生的过程，分析学习压力与动力的关系及前人的研究成果，因此前两部分对本研究奠定了扎实的理论基础。
Chapter two reviews the classification of stress and analyzes the correlation between motivation and stress. Chapter one and chapter two lay a sound theoretical foundation for this research.
第二章阐述了有关压力产生的过程，分析学习压力与动力的关系及前人的研究成果，因此前两部分对本研究奠定了扎实的理论基础。
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