With the freshwater becoming less and less, how to make use of and to protect the groundwater is calling our attention, for which simulation of water fluid and water quality is essential.

随着淡水资源紧缺状况日益加重，合理利用和保护地下水资源逐渐得到社会的广泛关注，水质模拟与预测是评价和保护地下水工作中不可或缺的重要程序。

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The domestic water-storage projects mostly use basement or fire pool as tank, which the shape is rectangular and the height is not more than 5 m, while the study about it is relatively less.

国内应用水蓄冷的新建和改造项目中，多使用地下室或消防水池作为蓄冷水池，高度一般不超过5米，但对其研究相对较少。

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The home version, which will cost less, is even simpler and can use hot water instead of electricity to warm the wax in the pouch.

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It invests in businesses dedicated to making social change, like the drip irrigation company MicroDrip, which intends to save farmers money by enabling them to use less water to irrigate their crops.

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