The lunar soil (regolith) contains iron, aluminum, calcium, silicon, titanium, and oxygen, as well as trace amounts of lighter elements such as carbon, sulfur, and nitrogen.

月球的土壤(风化层)含有铁、铝、钙、硅、钛和氧等元素，此外还发现有大量较轻元素如碳、硫和氮等。

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In lab tests, Barron and li used silicon dioxide to treat P25, which is a commercial form of titanium dioxide.

在实验室测试中，巴伦·和李使用P 25二氧化矽治疗，这是一种商业形式的二氧化钛。

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Comprising of seven tiny layers — each one is 50-100 nanometers in height — the coating is made of silicon dioxide and titanium dioxide nanorods positioned at an oblique Angle.

涂层组成于7个微小的层面，每个层面的高度在50到100纳米之间。涂层材料是由具倾斜角度的二氧化硅和二氧化钛的纳米棒组成。

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Some studies have linked the inhalation of titanium dioxide and silicon dioxide dust to cancer in animals, but it has not been proven in humans.

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This operation it is known as a total shoulder arthroplasty, Procedure No. 080.81 on the National Center for Health Statistics' roster of "clinical modifications" would require the orthopedist to take a surgical saw, cut off the shoulder joint that God gave me, and replace it with a man-made contraption of silicon and titanium.

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Comprising of seven tiny layers, each 50 to 100 nanometers in height, the coating is made of silicon dioxide and titanium dioxide nanorods positioned at an oblique angle.

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