Low silicon iron tailings are a mine solid waste with very low utilization rate.

低硅铁尾矿是一种利用率极低的矿业固体废物。

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In order to obtain low silicon iron for steelmaking the reduction process of silicon must be controlled in blast furnace.

为了获得低硅炼钢生铁，必须控制高炉内硅的还原过程。

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Therefore transportation of sulphuric acid valve is usually a high silicon iron pump (casting and machining difficult), high-alloy stainless steel pumps (on the 20th alloy) manufacturing.

因此输送硫酸的泵阀通常采用高硅铸铁泵(铸造及加工难度大)、高合金不锈钢泵(20号合金)制造。

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Different kinds of clay contain different minerals such as silicon or iron dioxide.

VOA: special.2009.09.09

Their results suggest 55 Cancri e is largely composed of carbon (in the form of graphite and diamond), iron, silicon carbide, and, potentially, silicates.

BBC: Oddballs: The strange worlds beyond our Solar System

In 2010 a team of researchers from Washington State University found that artificial regolith containing silicon, aluminium, calcium, iron and magnesium oxide could be used by 3D printers to create solid objects.

BBC: 3D printed moon building designs revealed

This will map for the first time iron, magnesium, aluminium and silicon over the moon's entire surface.

ECONOMIST: Astronomy