The sulfide content of bottom sediments is one of the most important environmental indexes.
底质中的硫化物含量是一项重要的环境指标。
The magnetic frequency dependent susceptibility of lacustrine sediment is one of the main environmental indexes for reconstructing historical environmental variations.
湖泊沉积物频率磁化率是恢复历史时期环境变化的重要环境指标之一。
By analysis, the system is able to monitor the environmental indexes of forest in real time for enhancing the efficiency of forest fire prevention and fire extinguishment.
经分析，该系统可实时监测森林的环境指标，对提高森林防火、灭火的效率具有积极的意义。
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