Objective to evaluate clinical significance of atrial fibrillation with long R-R interval on Holter monitoring in the elderly patients.
目的探讨老年心房颤动伴动态心电图长r - R间隔的临床意义。
In monitor of the chief systems of experimental cattle, only bradycadia, mild imbalance of acid-base and prolonged P-R interval of ECG were found.
对实验牛心血管系统、呼吸系统，肝肾系统和血液指标监测，仅见心率减慢、轻度酸碱平衡紊乱以及ECG的P—R间期延长，其他指标均无明显变化。
The experimental results indicated that the effects of the noise frequencies and exposed conditions on HRV during R-R interval period were significant .
该文通过实验研究了不同频率、不同噪声级和不同暴露条件下的噪声对人体的心率变异的影响。
Objective To study structure of the unstable periodic orbits (UPOs) of R-R interval signals of heart during orthostatic standing, and to reveal the dynamic characters of heart rate variability (HRV).
目的研究立位心脏R- R间期信号的非稳定周期轨道的结构，进一步探讨心率变异（HRV）的动力学特征。
R — The average number of runnable kernel threads over whatever sampling interval you have chosen.
r——在所选择的任意采样间隔期间的平均可运行内核线程数。
r—The average number of runnable kernel threads over the timing interval you have specified.
r——在您指定的时间间隔内，可运行内核线程的平均数量。
r So, if we wait a certain amount of time, we'll have a vector, delta r, which is the change in position vector a various interval of time.
那么如果过一段时间，这就有一个向量△,它是位矢经过一段时间的改变量。
Moreover we use the conclusions solving the R-controllability of interval singular systems with control delay.
并利用所得结果，解决了控制时滞线性时不变区间奇异系统的R -能控问题。
The maximum velocity V in blasting vibration is a random variable, it has no definite function relation to Q and R in general meaning. So V only can be controlled in a confidence interval.
阐述了爆破地震波的质点最大振速V是一个随机变量，它与Q、R没有一般意义上确定的函数关系，因此振动只能控制在某一区间。
The maximum velocity V in blasting vibration is a random variable, it has no definite function relation to Q and R in general meaning. So V only can be controlled in a confidence interval.
阐述了爆破地震波的质点最大振速V是一个随机变量，它与Q、R没有一般意义上确定的函数关系，因此振动只能控制在某一区间。
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