单词:second pyrolysis
二级热裂解
单词:second pyrolysis 相关文章
This is Scientific Americans 60-Second Science. Im Steve Mirsky. Got a minute? To keep your car purring, you have to change the oil. Such maintenance produces eight billion gallons of used motor oil annually. Some waste oil does get re-refined to pro
发表于:2018-12-24 / 阅读(94) / 评论(0)
Scientific American(三)月