如：高岭土。
This is the difficult and hot subject in the kaolin trade.
这也是高岭土行业研究的难点和热点。
The sedimentary kaolin is a unique kaolin source in China.
沉积型高岭土是中国特有的高岭土资源。
Kaolin is a very important use of a very wide range of non-metallic minerals.
高岭土是一种非常重要、用途十分广泛的非金属矿物。
The results show that the composition and structure of kaolin at different area is different.
实验结果表明：不同产地的高岭土其组成和结构有所差异。
The results show that the composition and structure of kaolin at different area is different.
实验结果表明：不同产地的高岭土其组成和结构有所差异。
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