The prospectors have discovered such minerals as calcite, quartz and asbestos here.探矿人员在这里发现了方解石 、 石英、石棉等矿藏.There is a great deal quartz in those mountains.那些山里蕴藏着大量石英.To this class of substance belong mica, porcelain, q...
The illustrations were cleverly tied in with the text.插图与本文配合得很巧妙。Compare the two illustrations in Fig 60...比较图60中的两幅插图。Too, the reader will find in this book many interesting illustrations.读者还能在书中看到许多有趣的插图。Archaeologica...