The addition of particles is good, but wide smoke particles tend to 'eat' image info and mess up with effects.

你还可以自己加些粒子，但加入太大范围的烟尘粒子会“吃掉”图象，使效果混乱。

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This detector is photoelectric smoke detector, works according to the principle of induction to the smoke particles.

本探测器为光电感烟探测器，是根据感应烟雾颗粒的原理来工作。

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The development of photoelectric smoke detection technology asks urgently for a light scattering model for smoke particles.

光电感烟探测技术的迅猛发展，迫切需要适用于火灾烟颗粒的光散射模型对其进行指导与支撑。

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About the same size as fine particles of cigarette smoke, the grains are made of silicate minerals and carbon-based materials coated with ice - principally water ice and frozen carbon monoxide.

BBC: University of Nottingham

Toxic particles in cigarette smoke can remain on nearby surfaces, as well as the hair and clothing of the smoker, long after the cigarette has been put out, and small children are susceptible because they are likely to breathe in close proximity, or even lick and suck them.

BBC: Warning over 'third-hand smoke'

The visible particles and clouds of smoke in the scene react to other objects using fluid dynamics simulation.

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