气凝胶的纳米级微孔不但能够像海绵一样收集污染物,它们还能够起到空气容器的作用。
Its nano-sized pores can not only collect pollutants like a sponge but they also act as air pockets.
这类微生物不但能够清除空气中的二氧化碳,而且能够快速繁殖——有些种类只用12小时就能翻一番,而青草及其他大型植物则需要好几个星期甚至好几个月才能达到这样的水准。
Not only do these microbes remove carbon dioxide from the air, they also grow quickly-some forms double in just 12 hours, whereas grasses and other large plants can take weeks or months to do so.
所有这些微粒与气体不但造成了全球变暖,其中有一些还是危险得能引发呼吸系统疾病的空气污染物。
All of these particles and gases contribute to global warming and some are dangerous air pollutants that can lead to respiratory disease.
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