kilohertz
意味: A unit of frequency equal to one thousand hertz (cycles per second), commonly used to describe audio frequencies, radio signals, and sampling rates.
The kilohertz (kHz) sits in the range of human hearing (roughly 20 Hz to 20 kHz) and is the standard unit for AM radio frequencies, audio sampling rates, and ultrasonic applications. In telecommunications, longwave and mediumwave radio frequencies are expressed in kilohertz. The unit is also used in computing to describe clock speeds of older or low-power processors.
例文
- BBC Radio 4 broadcasts on longwave at 198 kilohertz, a frequency that has served listeners across the British Isles for decades. BBC第四广播频道在长波198千赫兹上播出,这一频率数十年来服务着英伦诸岛的听众。BBC Radio 4 emite en onda larga a 198 kilohercios, una frecuencia que ha servido a los oyentes de las islas británicas durante décadas.BBC Radio 4は長波198キロヘルツで放送しており、この周波数は数十年にわたりイギリス諸島のリスナーに利用されてきた。BBC Radio 4는 장파 198킬로헤르츠로 방송하며, 이 주파수는 수십 년간 영국 전역의 청취자들에게 이용되어 왔다.
- The audio engineer set the sampling rate at 44.1 kilohertz, the standard for compact disc recordings. 音频工程师将采样率设定为44.1千赫兹,这是CD录音的标准。El ingeniero de audio fijó la tasa de muestreo en 44,1 kilohercios, el estándar para las grabaciones en disco compacto.音響技術者はサンプリングレートを44.1キロヘルツに設定した。これはCDレコーディングの標準である。음향 기술자는 샘플링 레이트를 44.1킬로헤르츠로 설정했다. 이는 CD 녹음의 표준이다.
- The ultrasonic cleaning device operated at a frequency of 40 kilohertz to remove contaminants from delicate components. 该超声波清洗设备在40千赫兹的频率下运行,以去除精密部件上的污染物。El dispositivo de limpieza por ultrasonidos funcionaba a una frecuencia de 40 kilohercios para eliminar contaminantes de componentes delicados.その超音波洗浄装置は40キロヘルツの周波数で動作し、精密部品から汚染物質を除去した。그 초음파 세척 장치는 40킬로헤르츠의 주파수로 작동하여 정밀 부품에서 오염 물질을 제거했다.
発音
使い方ガイド
場面: scientific, professional
トーン: neutral
起源と歴史
From Greek khilioi (thousand) and the surname of Heinrich Hertz, the German physicist who first proved the existence of electromagnetic waves in 1887.
文化的背景
Era: Modern
Generation: All ages
Social background: Universal
このトピックの他の表現
More from General Advanced