求翻译：自然条件超声和索氏萃取，土壤中的荧蒽浓度随着老化时间的延长均呈现下降的趋势，灭菌条件的结果相似。不同的老化时间，荧蒽的索氏萃取量均大于超声萃取量。三步萃取的结果表明，易解析态的荧蒽浓度随着老化时间的延长而降低，而难解析态表现出相反的趋势。与灭菌条件相比，总体上自然条件索氏萃取和超声萃取土壤中荧蒽浓度较小。不同的老化时间培养蚯蚓7d后，索氏萃取，超声萃取萃取，易解析态和难解析态的土壤荧蒽浓度均降低，表明蚯蚓连同土壤中的微生物能共同促进土壤中荧蒽的降解。蚯蚓培养7天后的的索氏和超声萃取中，除0d外，灭菌条件荧蒽的浓度大于自然条件。是什么意思？

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In natural conditions ultrasound and he was in the soil extraction, the anthraquinones concentration as the aging time is extended downward trend, sterilization conditions the results were the same. The anthraquinones, screen aging time of the extraction rate was greater than ultrasound extraction.

The natural condition supersonic and the rope extract, in the soil glimmer anthracene density presents the drop along with the aging time extension the tendency, the antiseptic condition result is similar.The different aging time, the glimmer anthracene rope extract quantity is bigger than the super

Natural conditions of ultrasonic extraction and Soxhlet, concentrations of fluoranthene in soil as the extension of the declining trend of the aging time, results of sterilization conditions are similar. Different ages, fluoranthene Soxhlet extraction of ultrasonic extraction of volume greater than

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