The structure of water consumption should be rationalized with more water available for ecological purpose. 用水结构趋于合理，生态用水逐步增加。
Structural characterization may include a determination of amino acid sequence, amino acid composition, peptide map, and carbohydrate structure. 结构界定可能包括氨基酸序列，氨基酸组成，缩氨酸图和碳水结构。
