Third-order cumulants of speech signals are not identically zero, so it could be used to detect the start point and end point of the voice under very noisy environments.
语音信号的三阶累积量通常不等于零，因而可以用来检测噪声环境中语音的起始点和终止点。
Sun Daochun proves the existence theorem on the maximum condensation point of the zero order meromorphic functions in the unit circle.
孙道椿证明了单位圆内一类零级亚纯函数的最大型聚值点存在性定理，本文将这一结果在一定程度上推广到了亚纯代数体函数。
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