Conclusions the mouse model of morphine-induced colon slow transit motility has dry and hard fecal character, decreased average daily fecal weight and the slow intestinal transit rate.

结论：吗啡诱导的小鼠结肠慢传输运动模型日平均粪便重量减少、粪便性状变干硬、肠道推进率明显减慢。

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Weight geometric average combination forecast model obtained by weighing several different forecast models, is presented in this paper. A method is given to determine the best weight.

本文提出了由几个不同的预测模型通过加权几何平均的方式进行组合从而得到加权几何平均组合预测模型，给出了确定最优权系数的方法。

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The average placental weight of L-arginine treated groups were increased significantly compared with Model group (P< 0.01).

结果模型组大鼠胎盘重比对照组明显下降，L-精氨酸防治组与模型组相比，胎盘重量明显增加（P<0.01）。

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