So studying the self-heating process of sulfide ore pile is a precondition to develop the forecasting method of the spontaneous combustion of sulfide ore at the early stage.

因此，研究硫化矿自热过程是研究硫化矿自燃早期预测预报方法的前提。

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So studying the self-heating process of sulfide ore pile is a precondition to develop the forecasting method of the spontaneous combustion of sulfide ore at the early stage.

因此，研究硫化矿自热过程是研究硫化矿自燃早期预测预报方法的前提。

youdao