The math model is achieved in the computer by ANSYS, and 3-D random aggregate model of concrete is established.
利用ANSYS将混凝土数学模型在计算机上实现，建立混凝土三维随机骨料模型。
Fuzzy math and the theory of AHP are combined to set a fuzzy overall analysis model for the concrete construction quality risk analysis.
将模糊综合评价方法应用于工程质量风险管理，结合层次分析法评价了混凝土施工质量风险水平。
In order to get a good understanding of the implementation of the Curriculum, in May, 2007 a concrete survey was conducted with some Senior Math teachers in the form of paper questionnaire.
为切实了解普通高中数学课程标准实施状况，2007年5月在南京市全市高二数学教师教研活动时间进行了问卷调查。
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