The manganhedenbergite can be considered as an important ind-cator for Pb-Zn metallization.

锰钙铁辉石可以作为铅锌矿化的重要标志。

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The advent of digital tools will have an impact on education that will rival that of the printing press, said Ms. Cator.

卡托尔女士说，数字化工具的出现将与印刷出版在对教育产生影响方面相竞争。

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The advent of digital tools will have an impact on education that will rival that of the printing press, said Ms. Cator.

卡托尔女士说，数字化工具的出现将与印刷出版在对教育产生影响方面相竞争。

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