Based on the characteristics of biomass fuel, this article summarizes the sources of alkali metals in biomass and the elutriation and migration.
摘要在明确了物质燃料特础上,对物质中元素来源和析出迁移规律进行了概述。
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It took decades to tease out the truth of Debereiner's conjecture, and thus to construct the periodic table-in which the alkali metals form the first column.
科学家们证实Debereiner猜想的正了数十年的时间,也因此建立了元素周期表——碱金组成了第一族。
Group one, if you put hydrogen aside, these are referred to as the alkali metals.
第一族,如果你除在外,这些元素被称为碱金。
Well if you look at the period table, the people who want to give really badly-- and we've talked about this a good bit-- are the alkali metals.
看看元素周期表,那些非常想给出电子的元素——我们之前已经讨论过这一点了——是碱金。
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