在美国和欧洲，通过现在要求的用于对付空气颗粒污染的过滤器和刷具，黑炭的排放已经大幅减少。
In the United States and Europe, black carbon emissions have already been reduced significantly by filters and scrubbers that are now required to fight local particulate air pollution.
扫描过的花粉颗粒要用手工着色，这是非常耗时而具艺术性的工作。
Once the grains are scanned they are coloured-in by hand, it's avery time-consuming and artistic work.
具较低结构有序度、较大的颗粒粒度并充分分散的高岭石有利于插层作用。
The results show that the kaolinite with low structure order degree and relative large particle size is more easily intercalated under well dispersed.
应用推荐