Either of two large reptiles, Alligator mississipiensis of the southeast United States or A. sinensis of China, having sharp teeth and powerful jaws .
两种大型爬行动物，美国东南部的密西西比鳄或中国的扬子鳄中一种，它们有尖利的牙齿和有力的颚部。
Methed: Qualitative and quantitative chemical analysis methods were used to evaluate the quality of different cutting processed A. sinensis.
方法：采用化学手段，建立多指标定量、定性评价的方法，评价不同方法切制的当归饮片质量。
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