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[求助]
求下面一段文章的翻譯
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求翻譯如下文章:The building block of silica and the silicate structures is the S1O4 tetrahedron, four oxygen atoms at the corners of a regular tetrahedron with a silicon ion at the center cavity or centroid (Figure 1). The oxygen ion is so much larger than the S i 4 + ion that the four oxygens of a S1O4 unit are in mutual contact and the silicon ion is said to be in a tetrahedral hole (I). Natural silicas can be crystalline, as in quartz, cristobalite, tridymite, coesite, and stishovite, or amorphous, as in opal. Crystalline silica polymorphs are divided according to their framework density (SiO2 groups per 1000 à3 ) into pyknosils and porosils, and the latter are further divided into clathrasils and zeosils depending on whether the pores are closed or open, that is, accessible to adsorption . |
禁蟲 (知名作家)
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首先樓主你發(fā)錯地方了,翻譯的東西有專有的版塊兒。 上面的意思比較簡單,而且也是基礎的東西。里面還有些錯別字。 氧化硅和硅酸鹽建筑材料的結構是siO4四面體,氧原子位于正四面體的四個角,硅離子位于這個四面體的重心(如圖1)。氧離子較Si4+離子大很多,以至于SiO4結構單元中的四個氧離子緊密接觸,硅離子位于四面體空隙中。 (1)天然的二氧化硅可以使晶態(tài)的,比如:石英,方石英,鱗石英,柯石英,斯石英或者無定形態(tài)的,像蛋白石。晶態(tài)的二氧化硅根據(jù)它們的結構密度()可以分類為致密的或者疏松的,后者又可以通過開孔和閉孔區(qū)(通過吸附)分為clathrasils和zeosils ![]() ![]() |
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