In view of the characteristics that the dissolving temperature of quartz is low in the firing process of feldspar ceramics, the paper advances the practical formula to calculate the residue quartz.

针对长石质瓷烧成过程石英溶解速度低的特点，提出了计算残余石英量的实用公式。

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And it seems now that this is dissolving, but there is no real solution in their view.

WHITEHOUSE: Press Briefing