water tight structure的用法和樣例：
例句
- The structure of water consumption should be rationalized with more water available for ecological purpose.
用水結構趨於合理，生態用水逐步增加。 - Structural characterization may include a determination of amino acid sequence, amino acid composition, peptide map, and carbohydrate structure.
結構界定可能包括氨基酸序列，氨基酸組成，縮氨酸圖和碳水結構。
