On this basis, an unascertained model of air quality simulation is established.
在此基础上，应建立未确知空气质量模拟模型。
On this basis, an unascertained model of water quality simulation is established.
在此基础上，建立未确知水质模拟模型。
The data from farmland irrigation system was analyzed with unascertained model. The effect of this method in increasing farmland irrigation effect was demonstrated with an example.
采用未确知数学模型对农田灌溉系统的录取数据进行了分析，并通过实例论证了该方法在提高农田灌溉效果方面所起的作用。
This paper sets up an unascertained measuring model . Comparing with other models , this model is more rigorous , the conclusion is more reasonable and practicable.
本文给出大气环境质量评价的未确测度模型。与其它评价模型比较，本模型更加严谨，使评价结果合理、实用。
This paper sets up an unascertained measuring model . Comparing with other models , this model is more rigorous , the conclusion is more reasonable and practicable.
本文给出大气环境质量评价的未确测度模型。与其它评价模型比较，本模型更加严谨，使评价结果合理、实用。
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