雾滴就是组成雾的小水滴，它们悬浮在近地面空气层中。 雾滴的平均直径在 10 到 15 微米之间。雾滴大小的分布近似于对数正态分布。 雾滴的性质影响着能见度。 雾滴中含有炭黑、二氧化硫、挥发性有机物、无机盐等等化学成分。
喷雾干燥的雾矩和雾滴颗粒直径可略作调整。
The fog moment and fog droplet of spray-drying can be slightly adjusted.
在自然凝结过程中，部分粒子活化并生长成云或雾滴，而余下部分保持没有活化。
During natural condensation part of the particle population become activated and grow into cloud or fog droplets while the remainder remain inactivated.
本文对马歇尔提出的雾滴降速干燥动力学方程序进行了推导，证明该方程序仍属于等速干燥方程。
The falling-rate drying kinetic equation of droplets proposed by Marshall s deduced once again, and the result shows that the Marshall's equation is still an equation for constant-rate drying process.
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