The common frequency histogram method is not applicable to analyze the small sample data, because it is sensitive to the analysis parameters such as the starting point and the interval step.
在应用频率直方图法对小样本数据进行处理时，分析结果对直方图的起点、区间步长以及样本中的奇异数据十分敏感。
The precision of stack velocity and interval velocity provided by common NMO correction processing method can't meet the need of predicting the pre-drilling press.
常规动校正处理方法提供的叠加速度及层速度精度不能满足钻前压力预测的需要。
The ST-T segment changes and QT interval abnormalities are the common indices to measure the ventricular repolarization inconsistencies in clinical practice and epidemiological surveys.
ST-T段改变和QT间期异常是目前临床上和流行病学调查研究中常用的衡量心室复极不一致性的指标。
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