precision ratio短语¹⁴⁴⁹⁷²⁺² 基本例句 查准率 The experimental results show that this approach can improve the precision ratio and recall ratio of the schema matching obviously, and it can effectively improve the quality of the schema matching. 实验结论表示该方法能明显进步形式匹配白勺准确度和召回率，有效地进步了匹配质量。 lunwenzhiku