求翻译：随着老化时间的延长，高浓度（100 mg kg-1）易解析态的芘呈现下降的趋势，低浓度无明显的规律；不同浓度的难解析态芘呈先升后降的趋势；不同浓度的结合态残留的芘在60-150d明显增加。不同老化时间培养蚯蚓7d后，土壤中芘的易解析态和难解析态的浓度均表现出先升后降的规律，不同浓度结合态残留芘的变化无一定的规律。芘浓度无规律的变化与HPCD的空腔结构有关。是什么意思？

With aging time, the high concentration (100 mg kg-1) easy to resolve the state pyrene showed a downward trend, the low concentration and no obvious rules; different concentrations of pyrene difficult to resolve was the trend first and then decreased; different concentrations bound residues of pyren

With the extended aging time, high-density (100 mg kg- 1) Easy-to-parse state of the black spots, a decreasing trend of low-density has no obvious rule; different concentrations of the difficult to parse state to tackle after a trend of declining; different concentrations of sulfur trapped in State

Along with the aging time extension, the high potency (100 mg kg-1) easy to analyze condition pi presents the drop the tendency, the low concentration not obvious rule; After the different density difficult to analyze the tendency which condition pi assumes rises to fall first; Different density uni

As the aging time of the extension, the high concentration (100 mg kg-1) pyrene declining trend of the resolved state, low concentrations of no obvious patterns; difficult to resolve in different concentration trend of increased State pyrene is first and then drop; different concentration of bound r

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