单词：sequential pyrolysis
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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(176) / 评论(0)
Scientific American(三)月
Scientific American(三)月
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发表于:2018-12-30 / 阅读(189) / 评论(0)
单词解析速记
单词解析速记
拓扑排序 topological sort 偏序 partical order 拓扑有序 topological order AOV网 activity on vertex network AOE网 activity on edge network 关键路径 critical path 匹配 matching 最大匹配
发表于:2019-02-01 / 阅读(188) / 评论(0)
实用英语
实用英语