预测功效 meaning in English

forecasting power
predictive power

That is mean the model has the ability to predict the emission of such engine in quality but lack the accuracy to predict the emissions
可见该模型对排放物浓度变化具有定性的预测功效而不能达到定量预测的精度。
That is mean the model has the ability to predict the emission of such engine in quality but lack the accuracy to predict the emissions
可见该模型对燃烧产物浓度变化具有定性的预测功效而不能达到定量预测的精度。