Small particles adhere to the seed.

微小的粒子紧贴着种子。

《柯林斯英汉双解大词典》

These small particles agglomerate together to form larger clusters.

这些颗粒聚结形成较大的团。

《牛津词典》

Every substance, no matter what it is, is composed of very small particles called molecules.

各种物质，不论它是什么，都是由一些称为分子的很小的粒子构成的。

《新英汉大辞典》

When melting snow crystals or raindrops fall through very cold air, they freeze to form small particles of ice,called sleet.

VOA: special.2010.01.05

These very small particles are able to specifically recognize certain kinds of cells.

这些微小的小颗粒,可以识别特定种类的细胞

耶鲁公开课 - 生物医学工程探索课程节选

So, then we'll get to turn to a new kind of mechanics or quantum mechanics, which will in fact be able to describe what's happening on this very, very small size scale -- so on the atomic size scale on the order of nanometers or angstroms, very small particles.

然后我们要讲到一种,新的力学--量子力学,它可以解释,发生在很小尺度,大约是原子尺寸大小,也就是纳米或埃的量级。

麻省理工公开课 - 化学原理课程节选

So far, though, this has been experimentally limited to small particles and a few tiny molecules.

FORBES: Making Something Exist in Two Places At Once

Nitrogen oxides contribute to haze and form small particles that make people sick and even kill them.

NPR: E.P.A Proposes New Rules on Haze

Opponents in Minisink worry about air emissions of acidic gases and small particles that would fall on nearby farmland.

WSJ: NY town of 9/11 workers wages gas pipeline fight