求翻译：稀土金属的半径大，配位数高，有复杂结构，稀土金属有亲氧性，Eu Gd Pr 可与羧酸形成三维结构配合物，经过研究，这种三维结构配合物有优良性质，热稳定好，并发现有荧光发射光谱，可作为荧光材料使用是什么意思？

Rare earth radius, high coordination number, has a complex structure, rare earth metals affinity for oxygen, eu the gd pr three-dimensional structure of complexes formed with the carboxylic acid, through research, this three-dimensional structure of complexes have excellent properties, thermal stabi

Rare-earth metal of the radius, the allocation of high, and there is a complex structure, rare-earth metal of a pro-oxygen, Eu Gd Pr carboxylic acids may be formed with 3 dimensional structure with property, after the study, this three-dimensional structure with good properties with good nature, the

The rare-earth metal radius is big, the coordination number is high, has the complex structure, the rare-earth metal has own oxygen, Eu Gd Pr may form the three dimensional structure preparation with the carboxylic acid, the process research, this kind of three dimensional structure preparation

Radius of rare earth metals, higher coordination number, a complex structure, of rare-earth metal with oxygen, Eu Gd complexes of carboxylic acids to form three dimensional structures and Pr, after researching, this three dimensional structural complexes have excellent properties, good thermal stabi

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