Aerosols are very small particles in the air.
气体是空气中很小的颗粒。
Very small particles of silver chloride are in here.
在里面是氯化银的小颗粒。
Wash it in water, pick out the small particles, if any.
在水里洗一洗，如果有小颗粒，就挑出来。
To do this, researchers typically put a lot of small particles in the water.
为此，研究人员在水里放了很多细小的颗粒。
As is known to all, the world is made up of small particles called atoms.
众所周知，世界是由叫做原子的小微粒组成的。
Meteoroids are small particles in space with size similar to grains of sand.
宇宙充塞著沙粒大小的流星体。
Very small solid particles around which the vapor can condense must be present.
必须有很小的固体颗粒，水汽可以围绕它们发生凝结。
Atoms, which are very, very small, can be broken down into still smaller particles.
原子虽然很小很小，但仍能分解成更小的粒子。
These particles are so small they are able to enter the organisms.
这些颗粒很小，能够进入有机体。
Worse, protective measures like wearing face masks barely help because the particles are too small.
石远凯说，“更糟糕的是，因为颗粒太小，像戴口罩这样的保护性措施几乎不会起到什么作用。”
Worse, protective measures like wearing face masks barely help because the particles are too small.
石远凯说，“更糟糕的是，因为颗粒太小，像戴口罩这样的保护性措施几乎不会起到什么作用。”
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