目的：考察苯妥英钠中毒浓度与下肢运动障碍间的相关性。
Objective: To study the correlation between phenytoin poisoning and the impediment to leg activity.
污染源清单的建立是目前城市大气污染浓度预报中的一大障碍。
The making an investigation of air pollution sources is a difficult thing for prediction of urban air quality.
研究结果提示，精索静脉曲张睾丸功能障碍可能与血清睾酮浓度低下及睾丸细胞核雄激素受体反应异常有关。
The authors suggest that the disturbed function of testes in rats with varicocele may be related to lower values of serum testosterone and abnormal reaction of NAR in testes.
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