The ultrafine grained titanium iron ore grade is low, particle size distribution and The Ilmenite ore and gangue titanium and titanium ordinary pyroxene magnetic proportion.

该细粒级钛铁矿品位低、粒度分布不均匀，并且钛铁矿和脉石中的普通辉石磁性和比重相差不大。

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The architects worked with Pureti, a green-tech manufacturer (and winner of a 2011 "What's New" award from Popular Science), to develop a spray version of a titanium nano particle that, when activated by sunlight, oxidizes airborne particulates and converts them into water vapor and trace amounts of carbon dioxide.

WSJ: Turning Up the Volume in Public | By Julie V. Iovine