单项指标是指那些所揭示的内容只能反映分析对象某一特征的指标。这种指标具有单一性和精确性。
单项指标的检测在不同性质的胸腔积液中具有不同的敏感性和特异性。
Single indicator in the detection of different types of pleural effusion has different sensitivity and specificity.
方法依据中国居民膳食指南，选择构成膳食平衡指数的食物组的单项指标。
Method The Dietary Guidelines for Chinese Residents motivated the selection of food-based components.
用多项指标评价方法所得结果与用土壤电阻率单项指标评价的结果基本一致。
The results obtained from multi-index evaluation consistent with those from single index evaluation of soil resistivity on the whole.
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