Have you ever gotten a piece of sand or dirt or other small particle in your eye?

你曾经有过沙子、灰尘或其他小颗粒进入眼睛的经历吗？

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The measurement of the relative concentration of small particle groups has promising application prospects in the research of atmosphere, industrial burners, chemical factories and fire science.

微小颗粒场相对浓度的测量在大气、工业炉、化工厂及火灾研究等领域有着广阔的应用前景。

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So the control of very small particle sizes is important to the paint industry.

所以在油漆工业，控制很小的粒子的尺寸是非常重要的。

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If the atom in question is in a small particle on the surface of a piece of silicon, the result is what is known as a surface plasmon.

ECONOMIST: Solar energy

Nanophase can make them 50 nanometers wide, which renders the zinc oxide transparent no more white goop since each crystalline particle is small enough to allow harmless light to pass through.

FORBES: The Science of Small

Nanophase can make them as small as 50 nanometers wide, which renders the zinc oxide transparent no more white goop since each crystalline particle is small enough to allow harmless light to pass through.

FORBES: The science of small