2N-VAR (声波或无线电波的)频率,周率 In physics, the frequency of a sound wave or a radio wave is the number of times it vibrates within a specified period of time. (声波或无线电波的)频率,周率
1rate at which sth happens發生頻率ADJECTIVE | VERB + FREQUENCY | PREPOSITIONADJECTIVE➤great高發率▸➤increased, increasing增高的/越來越高的頻率➤reduced降低的頻率➤estimated, expected估計的/期望的頻率➤different, same, similar不同的/相同的/相似的頻率▸➤relative相對發生率◇The relative frequency of this illness in the area is of concern to all doctors.所有的醫生都關注這種病在該地區相對頻繁的發生率。➤alarming令人擔心的頻率◇Bullets bounced off the rock with alarming frequency.子彈頻頻打在石頭上又彈射出去,令人心驚膽戰。VERB + FREQUENCY➤decrease in, increase in頻率下降/上升◇These incidents have increased in frequency.這些事件的發生率上升了。➤decrease, increase, reduce降低/增加/減少頻率◇The drug can reduce the frequency and severity of attacks.這種藥能降低發病次數和嚴重程度。➤assess, calculate, compare, determine, estimate, measure, observe評估/計算/比較/決定/估計/測量/觀測頻率➤affect, change影響/改變頻率PREPOSITION➤with frequency以⋯的頻率◇Accidents of this sort are happening with increasing frequency.這類事故發生得越來越頻繁。frequency
noun²
2of a wave波的頻率ADJECTIVE | FREQUENCY + NOUNADJECTIVE➤high, low高頻;低頻▸➤microwave, radio, vibration, wave微波頻率;射(電)頻(率);振動頻率;波頻▸➤signal信號頻率FREQUENCY + NOUN➤range, spectrum頻率範圍;頻譜▸➤band頻帶➤modulation頻率調制