利用比值植被指数（RVI）分析法，与实地虫灾调查相结合，找出了受虫灾影响后不同灾害程度的RVI临界值，判对率为73%。
The ratio vegetation index(RVI)method is combined with field survey of insect pest to determine critical values of RVI for different degrees of disaster and the judgement accuracy reaches 73%.
提示心肌断层显像摄取比值定量分析法有助于提高诊断冠心病的阳性率。
It is concluded that the UR quantitative analysis method of myocardial perfusion tomography imaging could improve the sensitivity of diagnosing CHD.
提示心肌断层显像摄取比值定量分析法有助于提高诊断冠心病的阳性率。
It is concluded that the UR quantitative analysis method of myocardial perfusion tomography imaging could improve the sensitivity of diagnosing CHD.
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