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1·The results of XRD and SEM show that the main crystal phase is the non-full-filled tetragonal tungsten bronze structure.

SEM结构分析可知，主晶相为非填满型钨青铜结构四方晶相。

2·The general formula, cation site occupancy and its coordination number in the structure of tungsten bronze niobate crystals are discussed.

讨论了钨青铜结构铌酸盐晶体的化学通式， 晶体结构中的阳离子占位及其配位数。