摘要: … The basic structural unit in vitreous silica is an almost exactIy symmetrical Si04 tetrahedron. Adjacent tetrahedra are connected together at a common, or bridging, oxygen atom ; thus, in …
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摘要: … The basic structural unit in vitreous silica is an almost exactIy symmetrical Si04 tetrahedron. Adjacent tetrahedra are connected together at a common, or bridging, oxygen atom ; thus, in …