Transitional metal complexes of pyromellitic acid were synthesized by homogeneous precipitation method, and characterized by TG, element analysis and FTIR.

用均匀沉淀法合成了均苯四甲酸过渡金属配合物。

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Moreover, multivariate linear models have been established between each element content and the characteristics factors of precipitation in throughfall, stem-flow, stream.

且建立了穿透水、干流和总径流的各化学元素含量与降雨特征因子的多元线性关系。

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The forecasting of meteorological element fields and precipitation is improved by use of the adjusted initial field.

使用调整后的初始场对降水及其它物理量场的预报均有所改善。

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