The chemical contents in the sand quartz has reached national standards of silicon raw material for plate glass production after combined treating by magnetic separation plus diluted acid dipping.

采用磁选分离法+稀酸浸泡法联合处理后，使该地石英砂的化学成分达到了优质的生产平板玻璃用硅质原料的国家标准。

youdao

Bishop's sandpiper poem, there in your handout, is obsessed with the mere details of experience, those sand grains and quartz grains.

我在讲义中提到，毕晓普类型的矶鹞诗人非常执迷于感受更加细微之处、那些细小的沙粒和石英碎片。

youdao

Normally, silicon carbide is produced by heating sand (which is made of quartz, or silicon dioxide) in an electric furnace with carbon made from oil or coal.

通常，硅碳化合物通常由加热的沙子(通常由石英构成，或称二氧化硅)和石油或煤炭中提取的碳放在电气炉内反应而得到。

youdao

Most sand is made of quartz, a hard silicon crystal.

VOA: special.2010.01.04

Bishop's sandpiper poet, there in your handout, is obsessed with the mere details of experience, those sand grains, quartz grains.

毕肖普写鹬的那首诗，你们的讲稿上有，被零星的描写经验的细节所累，描写了那些谷物和石英岩。

耶鲁公开课 - 现代诗歌课程节选

In addition, though, it is doped with powdered quartz (the pure stuff, rather than the tainted variety that makes up most sand) and various reinforcing metals and fibres.

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