Mass spectrometry is great for figuring out what kinds of molecules are in a complex mixture.

质谱分析法非常适合确定复杂混合物中有哪些种类分子。

" Particulate matter, " also known as particle pollution, is a complex mixture of extremely small particles and liquid droplets.

颗粒物也称颗粒物污染，是一种微小的固体和液体混合物。

Most organisms produce complex mixtures of terpenes, not just one or two, which allows for a wider vocabulary and a more complex conversation.

大多数有机体都会产生萜烯化合物，不是一两种，这就能够支持更广的词汇和更复杂的沟通。

OK, air pollution is a very complex mixture of solid particles, liquid droplets and gaseous chemicals.

好的，空气污染是固体颗粒、液滴和气态化学物质的非常复杂的混合物。