Since it is a range predicate and there are no frequency and histogram statistics available, the filter factor is calculated with the basic statistics information HIGH2KEY and LOW2KEY.

由于它是范围谓词，而且没有频度和直方图统计数据可用，过滤因子是用基础统计信息HIGH2KEY和LOW2KEY计算得出的。

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A conception of "frequency factor" is suggested for improving the accuracy to forecast the shrinkage defects.

为提高预测铸件凝固收缩缺陷的准确度，提出了频率因子的概念。

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Based on T type filter, the new ballast can achieve a wide dimming range with a very narrow frequency variation range, and it can operate with low lamp current crest factor.

基于T型滤波器的调光方法，能在很窄的工作频率范围内实现深度调光，同时具有灯电流波峰因数低的优点。

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In six of the seven, there was sufficient evidence to conclude that climate change caused by human activities played a factor in the events affecting their severity, likelihood or frequency.

CNN: Extreme weather and a changing climate