Light fraction organic matter is largely composed of plant residues at various stages of decomposition and a lot of microbial debris. Soil fertility varies with its changes as indicators.
轻组有机质主要是由不同分解程度的植物残体和一些微生物结构体组成，它的改变可以用来指示土壤肥力的变化。
Wu Hai, a Chinese rescue team leader who came from the neighbouring Yunnan province, said bodies in the town were in the middle stages of decomposition and "many of the limbs are broken off".
一位从相邻的云南省来的救援队负责人吴海(音)说，城镇中的尸体正在腐烂，“许多肢体都断折了”。“这里肯定有更多的尸体。”
The result showed there are three stages during the pyrolysis:dehydration, the degradation of organic material and the decomposition of inorganic material;
实验结果显示，污水污泥热解主要分为三个阶段：水分析出阶段、挥发分析出阶段和无机物分解阶段。
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