All the simulations are extensively tested for usability and educational effectiveness, and a rating system is used to indicate what level of testing they have received.
所有模拟的可用性和教育效用都得到广泛的测试，并运用评级系统来显示所达到的测试水平。
Through factor analysis, cluster analysis and so on, the paper establishes an internal rating model. The effectiveness of the model is tested.
论文利用贷款历史数据，通过因子分析、聚类分析等方法构建内部信用评级模型，并对模型的有效性进行了检验。
The effectiveness and predictability of mutual fund rating system can be tested by the empirical research for the persistence of fund performance.
通过持续性实证研究可以检验基金评级体系的有效性和可预测性。
In some universities students' rating has even become the only source of information on teaching effectiveness.
在一些大学学生的评级甚至成为唯一的信息来源在教学有效性。
As one of the important indexes for the quality rating of plating, porosity can be used to evaluate the protection effectiveness of the substrate by the plating.
孔隙率是检验镀层质量的一个重要指标，它标明了镀层对基体防护作用的优劣程度。
As one of the important indexes for the quality rating of plating, porosity can be used to evaluate the protection effectiveness of the substrate by the plating.
孔隙率是检验镀层质量的一个重要指标，它标明了镀层对基体防护作用的优劣程度。
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