frequency

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数据源: ai_enrichment
频率指单位时间内某事件发生的次数或周期性变化的速率,常用于描述统计、物理或日常生活中的重复现象。

用法要点

介词搭配

常用介词包括 'at' 表示特定频率(如 at a high frequency),'with' 表示伴随频率(如 with increasing frequency),'of' 表示频率的属性(如 frequency of occurrence)。

• at a low frequency
• with high frequency
• frequency of use

句型结构

常作主语或宾语,如 'The frequency of earthquakes has increased' 或 'We measured the frequency'。也可用于 'frequency + of + noun' 结构描述具体事件。

• The frequency is too high
• Adjust the frequency
• frequency of visits

语域说明

在学术和科技语境中精确指代物理或统计频率;在日常对话中泛指事情发生的频繁程度,较口语化。

• radio frequency
• sampling frequency
• how often

基础例句

The frequency of bus services has improved since last month.

从上个月起,公交车的班次频率已经提高了。

How often do you check your email? I do it with high frequency.

你多久查一次邮件?我查得很频繁。

We need to reduce the frequency of meetings to save time.

我们需要减少开会的频率以节省时间。

高级例句

In signal processing, the Nyquist frequency is critical for avoiding aliasing effects.

在信号处理中,奈奎斯特频率对于避免混叠效应至关重要。

The study analyzed the frequency distribution of customer complaints over the past year.

这项研究分析了过去一年客户投诉的频率分布。

Adjusting the radio frequency can enhance communication clarity in remote areas.

调整无线电频率可以提高偏远地区通信的清晰度。

高频搭配

verb

increase frequencyreduce frequencymeasure frequencyadjust frequencycalculate frequency

adjective

high frequencylow frequencyradio frequencysampling frequencynatural frequency

noun

frequency bandfrequency distributionfrequency responsefrequency rangefrequency analysis

adverb

increasingly frequentrelatively frequentsufficiently frequent

preposition

at frequencywith frequencyfrequency of

phrase

frequency of occurrenceon a regular frequencychange in frequency

常见错误

❌ 错误:The frequency of the earthquake is many.
✓ 正确:The frequency of earthquakes is high.

错误:误用 'many' 修饰不可数名词 'frequency',应用 'high' 或 'low' 描述频率程度。

❌ 错误:He goes to gym with a frequency.
✓ 正确:He goes to the gym frequently.

错误:'with a frequency' 在口语中不自然,应改用副词 'frequently' 或 'often' 表达频繁性。

近义词辨析

rate

'rate' 强调单位时间内的变化量或速度,更通用;'frequency' 特指周期性或重复事件的次数。

The heart rate is 70 beats per minute, while the frequency of heartbeats is constant under normal conditions.

occurrence

'occurrence' 指事件发生的实例或事实,是具体事件;'frequency' 描述这些事件发生的频繁程度。

The occurrence of errors is rare, but their frequency has increased recently.