运用频率 meaning in Chinese

frequecy operation

Neural networks method for diagnosing faults of rolling bearing in electrical machines with frequency signatures
运用频率指标诊断电机轴承故障的神经网络法
The general statistical results of the study indicated that chinese high school students in general employed a variety of learning strategies to study english at a medium frequency level . compensation strategy , metacognitive strategy and cognitive strategy received relatively higher level of usage , while memory , affective and social strategy were reported to be used less frequently . to find out whether there is any difference in strategy use among high , middle and low proficiency students , anova was employed to analyze the variance of learning strategies among groups of different proficiency
在比较高中低分组策略运用和高考成绩之间的关系时，我们发现高考成绩高分、中分和低分组的学生在使用认知、补救、元认知、社会策略时有显著差异，英语成绩高的学生在使用这些策略的频率上显著高于低成绩组的学生，而在记忆策略和情感策略的运用频率虽无显著差异，但也是高分组高于低分组。