Therefore, taking advantage of AD device and digital filtering technique to realize mixing and other frequency transformation function is a comparatively advanced, novel and practical method.
因此，采用AD器件和数字滤波器技术实现混频等频率变换功能，是一种比较先进和新颖并且实际可行的方法。
Objective It is to comparatively study the curative effect of Risperdal on behavioral and psychiatric symptoms (BPSD) of Alzheimer's disease (AD).
目的对照研究维思通治疗阿尔茨海默病(AD)行为和精神症状(BPSD)的疗效。
Objective It is to comparatively study the curative effect of Risperdal on behavioral and psychiatric symptoms (BPSD) of Alzheimer's disease (AD).
目的对照研究维思通治疗阿尔茨海默病(AD)行为和精神症状(BPSD)的疗效。
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