Through statisticalobservation of falling leaves, a more ideal formula of the defoliant was developed.
并且通过对落叶规律的观察统计，筛选出比较理想的悬铃木落叶剂配方。
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The paper makes an observation and statistical study of 28 cases in drinking group and 22 cases in control group with peripheric blood of lymphatic sister chromatid exchanges (SCE).
This algorithm can realize linear minimum mean square error estimation of yaw rate, and on-line estimate statistical characteristic of system noise and observation noise during vehicle running.