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ABBREVIATION for severely subnormal; used of a person of very limited intelligence who needs special schooling 智力严重逊常
One detection design block diagram and algorithms for low S/N DS/SS signal are presented in this paper.
本文对低信噪比直接序列扩频（DS／SS）信号的检测提出了设计方案和算法。
The characteristics and function mechanism were illustrated through the elimination of pollutants such as BOD5 , SS, NH3-N, P, heavy metals and microbes.
通过介绍特征污染物含碳有机物（BOD_5）、悬浮物、总氮、磷、重金属以及细菌的去除，阐述了污染物去除的基本特征和作用机理。
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