In cities, we must pay close attention to saving water for industry, improving the rate of reused water and decreasing the drainage of polluted water.
城市用水应抓好工业节约用水，提高水的重复利用率，减少污水排放量。
Drainage basin characteristics values are the basic factors to account design flood, so correctly computing their values are requirement for improving design flood precision.
流域特征值是计算设计洪水的基本因子，正确地量算流域特征值是提高设计洪水精度的必要条件。
The key procedures for improving prognosis are the timely and effective operation and postoperative drainage.
根据胰腺损伤的具体情况，选择合理术式，充分有效的引流对治疗效果至关重要。
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