... 地下水总矿化度 total mineralization of groundwater 地下水硬度 groundwater hardness 地下水污染 groundwater pollution ...
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tatal hardness of groundwater 地下水的总硬度
groundwater total hardness 地下水总硬度
hardness of groundwater 地下水硬度
total hardness of groundwater 地下水的总硬度
In this paper, the hardness of the shallow groundwater was treated as a grey variable and the GM (1, 1) grey model was created to predict the future trend of the change in hardness.
本文将市区的浅层地下水硬度作为灰色量，用已有的硬度数据建立GM(1,1)灰色模型，预测其未来的变化趋势。
The aim is to provide a reference for solving the high hardness problem of the shallow groundwater.
目的在于为改善洛阳市浅层地下水质，解决水质硬化问题提供一个参考依据。
The hardness of the groundwater has showed a rising trend since 2002 and the upward trend is obvious;
灌区范围内地下水硬度自2002年以来，呈现上升趋势，且上升趋势比较明显；
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