基于对电极压印的分析，定义了3种电极头表面特征参数：相对半径（Rr）、边缘聚集度（EC）和偏心度（ECC）。
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The approximate entropy analysis of RR Interval series in coronary heart disease
冠心病患者RR间期序列的近似熵分析
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The cardiac RR Intervals Series is one of the important heart condition performances.
心率的RR间期是心脏状态的重要表现之一。
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Simulation and Optimum of Die Structure in RR Forging Process of Crankshafts
曲轴RR法限制成形的模拟及模具结构优化
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The relation between height and total cancer RR is similar in different populations.
一种可能性是，促使儿童长高的激素同样刺激癌细胞生长。
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Then combined with the obtained RR interval, we analyze them using functional linear model.
随后结合得到的RR间期数据，将它们代入到我们建立的函数型线性回归模型中。
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Clinical significance of permanent atrial fibrillation with Long RR interval
永久性心房颤动合并长RR间期的临床意义
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RR ( relative risk) can be used to mine the genes with the difference expression.
利用相对风险RR（relative risk）来挖掘具有显著差异性的表达基因。
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Increased RR activity is directly involved in tumor growth, metastasis, and drug resistance.
RR活性的增加与肿瘤的发生发展、转移和药物抗性密切相关。
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George RR Martin is known for taking his time over his books.
乔治·RR·马丁（George RR Martin）因为《权力的游戏》系列享有盛名。
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A Fine Graining Complexity Measure Algorithm and Its Application in Cardiac RR Intervals Analysis
细粒化复杂度算法及其在心电RR间隔分析中的应用
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A second experiment respectively measured word fragment completion rate in RR and FR.
实验二分别测量两种再认项目的补笔正确率。
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Repair the RR wheel speed sensor harness at the point where the code set.
修理右后轮速度感知器电线束的代码设定点。＊
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Cox proportional hazards model was used to estimate relative risks ( RR).
用Cox比例风险模型计算相对危险度（RR）。
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With accurate R wave position, analysis of HRV based on RR intervals is possible.
在准确探测R波的基础上，可对以RR间期为基础的URV信号进行分析。
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Predicting termination of atrial fibrillation based on sign sequence of RR interval differences
基于RR间期差符号序列预测房颤终止
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