名词定义中文名称：生物指示体英文名称：bio-indicator定义：其存在、生长状态或行为可以指示环境状况的某些生物有机体。应用学科：地理学（一级学科）；生物地理学（二级学科）以上内容由全国科学技术名词审定委员会审定公布
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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。
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.
二茂铁及其衍生物作为电子介体以及与DNA间的作用机理和作为DNA电化学传感器的指示剂研究也受到越来越广泛的重视。
Recently, more and moreattentions have been paid on their interaction mechanisms and the potentials as thehybridization indicator of electrochemical DNA sensors.
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