在将煤研磨成粉末后，加入弱无机酸，以从煤中萃取稳定性添加剂。

After the coal is ground into a powder, a weak mineral acid is added to extract stabilizing additives from the coal.

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在将煤研磨成粉末后，加入弱无机酸，以从煤中萃取稳定性添加剂。

After the coal is ground into a powder, a weak mineral acid is added to extract stabilizing additives from the coal.

youdao