| 释义 |
titanium dioxide(also titanium oxide) noun [mass noun]A white unreactive solid which occurs naturally as the mineral rutile and is used extensively as a white pigment.Compounds that protect against sun damage include such things as titanium dioxide, para amino benzoic acid, and benzyl cinnamate....- So, photonic crystals are now typically made of insulating or semiconducting materials, such as titanium oxide, silicon dioxide, silicon, or gallium arsenide.
- Sunblocks containing powdered titanium dioxide or zinc oxide dispersed in a base of petroleum jelly became available over 50 years ago.
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