唯一不带来变动的价格就是p*，即能够使需求数量等于供给数量的均衡价格。
The only price which doesn’t lead to price changes is p*, the equilibrium price in which the quantity supplied equalsthe quantity demanded.
唯一不带来变动的价格就是p*，即能够使需求数量等于供给数量的均衡价格。
The only price which doesn’t lead to price changes is p*, the equilibrium
通过历史资料的验证，表明本文所建立的水均衡模型对于地下水位变动的预测是可靠的，而且简单可行。
It is proved by the verification of historical data that the water balance model is credible and easily available for the forecast of groundwater table variation.
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