The study on coal lithostructures is of great significance for predicting the permeability of coal seam.
煤岩结构的研究在预测煤层的渗透性方面有重要意义。
The results showed that the practical study on single seismic data by way of tracing prediction could provide available evidence for seismic predicting decision.
结果表明，利用单台地震资料进行跟踪式预报的实用化研究，可以为地震预报决策提供有效的依据。
Its criterion is one of the basic contents concerned with study on predicting soil erosion.
确定侵蚀性降雨的标准，是土壤侵蚀预报研究的一项基本内容。
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