The defining feature of MDD is that models have become primary artifacts of software design, shifting much of the focus away from the corresponding program code.

MDD的定义特征是，此模型已经成为软件设计的主要工具，它把许多注意力从相关的程序代码上转移开。

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Firstly, feature vectors are extracted from speech signal, secondly, vector quantization is utilized to design code book, and lastly, improved method is used to recognize the speech signal.

先从语音信号中提取待识别的特征矢量集，再利用矢量量化来设计码本，最后用改进的算法对待识别语音进行辩识。

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To implement the constraint equations for the special design feature in log hauling trucks, a procedure is developed allowing the use of the code for general-purpose dynamic analysis of the trucks.

采用一般卡车通用动力学分析程序，只需补充描述原木拖车特殊设计特征的约束方程，上述算法即可实现。

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