• 1. ratio estimation: 比率估计法 | 比率推算法 | 估计法
• 2. ratio estimation method: 比值估计法
• 3. method of ratio estimation: 比率估计法

更多释义

• 1.Objective Propose a method that combines the propensity score approach and non-parametric survival analysis for hazard ratio estimation in non-randomized medical researches.
  目的提出一种适用于非随机化医学研究的，结合倾向指数与非参数生存分析估计风险比的方法。
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• 2.Implementation of the scheme has resolved the problems on difficult hydrogen nitrogen ratio estimation and difficult control, it has apparent economic and social benefit and worth extend.
  该方案实施后，解决了操作人员在实际操作过程中对氢氮比判断难、控制难的问题，具有明显的经济、社会效益及推广价值。
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• 3.In this paper, a transformer tap position tracing estimation algorithm based on turn ratio changing detection is proposed.
  本文提出一种基于变比变化检测的变压器抽头位置跟踪估计算法。
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