方法：紫外分光光度法测定氟罗沙星注射液含量，用初均速法预测其有效期。
Methods: the content of fleroxacin injection was determined by UV spectrophotometry, the expiry term was predicted by initial average rate methods.
研究结果表明 ，在沙柳无性系间速生性、抗逆性、适应性和生物量等数量性状存在丰富而广泛变异 ；
The results showed there are rich and popular variation in many quantity characters such as fast-growth, resistance, adaption, and biological volume among clones of Salix psammophila.
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