二氧化硅晶体是立体的�状结构其晶体模型如图所示.认真观察晶体模型并回答下列问题1二氧化硅晶体中最小的环为 元环.2每�尔硅原子形成 Template




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tomski二氧化硅晶体是立体的�状结构其晶体模型如图所示.认真观察晶体模型并回答下列问题1二氧化硅晶体中最小的环为 元环.2每�尔硅原子形成 coloring