单词：aerosols
n. a dispenser that holds a substance under pressure and that can release it as a fine spray (usually by means of a propellant gas)
aerosols的用法和样例：
例句
- Aerosols are present throughout the atmosphere.气溶胶存在于整个大气层。
- Atmospheric aerosols play a vital role in the process of acidic precipitation.大气气溶胶在酸性降水中的作用非常重要。
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