The underactuation of mechanical systems means that the dimension of the control vectors of systems is less than that of the configuration vector of systems.
机械系统的欠驱动特性是指系统控制输入向量空间的维数小于系统广义坐标向量空间维数的情况。
The extraction of effective feature vectors and pattern recognition are the key technique in the subject of mechanical condition monitoring and diagnosis.
有效特征向量的提取和状态识别是设备状态监测与故障诊断领域中的关键技术。
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