kilohertz

简明释义

英[ˈkɪləhɜːts]美[ˈkɪləhɜːrts]

n. [物] 千赫

复 数 k i l o h e r t z

英英释义

单词用法

同义词

反义词

例句

1.Its bandwidth of 428 kilohertz means a single segment can carry a bare-bones video picture, compact disc-quality audio, and text for news flashes, weather details and emergency announcements.

特高频带的带宽为428千赫，这意味着单个部分能够承载一个简单视频图片，光盘效果的视频以及新闻快报、天气预报和紧急通知。

2.Previous studies have shown that humans are unable to recognise melodies whose notes have a fundamental tone above 5 kilohertz.

之前的研究表明，人类无法辨认基音在5千赫兹以上的音符。

3.You may be hearing our broadcast on what is called short wave. These are frequencies between three thousand and thirty thousand kilohertz. They are often called megahertz.

或许你正在所谓的短波收听我们的广播，这就是三千千赫兹到三万千赫兹之间的频率(3兆赫兹—30兆赫兹)。

4.The bats can also "sweep through a frequency range of up to 170 kilohertz, " moving from lower to higher notes, "while a human singer produces a glissando through less than 2 kilohertz at most."

蝙蝠音频频率范围也可以高达170千赫，是=由从低频逐渐到高频。

5.Up until recently, this was accomplished by accelerating the clock speed, which has leaped from kilohertz to gigahertz in my lifetime.

直至最近，这种状况都是靠提高时钟频率达到的，在我有生之年，我已看到处理器主频从几千赫兹上升至几吉赫兹。

6.One megahertz is the same as one thousand kilohertz.

作为一个兆赫是一千千赫相同。

7.The bats can also "sweep through a frequency range of up to 170 kilohertz, " moving from lower to higher notes, "while a human singer produces a glissando through less than 2 kilohertz at most."

蝙蝠音频频率范围也可以高达170千赫，是=由从低频逐渐到高频。

8.Their instruments detected very faint radio waves at a frequency of 3 kilohertz.

他们的仪器探测到了频率为3千赫的非常微弱的无线电波。

9.The processor operates at a clock speed of 2,000 kilohertz.

该处理器的时钟速度为2000千赫兹。

10.The radio station broadcasts at a frequency of 101.5 kilohertz.

这个广播电台的频率为101.5千赫兹。

11.The ultrasonic cleaner operates at a frequency of 40 kilohertz.

超声波清洗机的工作频率为40千赫兹。

12.A typical telephone line transmits signals at about 3.1 kilohertz.

普通电话线路的信号传输频率大约为3.1千赫兹。

13.In audio engineering, a sample rate of 44.1 kilohertz is standard for CD quality.

在音频工程中，44.1千赫兹的采样率是CD音质的标准。

作文

In the realm of electronics and telecommunications, understanding frequencies is crucial. One such unit of frequency that often comes up in discussions is kilohertz, which refers to one thousand hertz, or cycles per second. The term kilohertz is commonly abbreviated as kHz, and it plays a significant role in various applications, from radio broadcasting to computer processing speeds. To grasp the importance of kilohertz, we must first understand what hertz means. Hertz (Hz) is the standard unit of frequency in the International System of Units (SI), representing the number of cycles per second of a periodic wave. Therefore, when we talk about kilohertz, we are essentially discussing a frequency that is 1,000 times higher than that of a single hertz.The concept of kilohertz is particularly relevant in the field of audio technology. For instance, most audio CDs operate at a sample rate of 44.1 kHz, which means they sample sound waves 44,100 times per second. This high sampling rate allows for the reproduction of sound with great fidelity, capturing the nuances of music and voice. Similarly, in the world of radio communications, FM radio stations typically broadcast at frequencies ranging from 88 to 108 kilohertz. This range allows for clear transmission of signals over long distances, providing listeners with high-quality sound.Moreover, kilohertz is also significant in the context of computer processors. Modern CPUs operate at speeds measured in gigahertz (GHz), which are billions of cycles per second. However, many components within a computer, such as the system bus or certain types of memory, may operate at speeds measured in kilohertz. Understanding these frequencies is essential for optimizing performance and ensuring compatibility among different hardware components.Additionally, the concept of kilohertz extends beyond audio and computing. In medical fields, for example, ultrasound machines use frequencies measured in kilohertz to create images of internal organs. The sound waves emitted by these machines travel through the body and bounce back, allowing healthcare professionals to visualize structures without invasive procedures. The ability to manipulate and understand these frequencies is vital for accurate diagnostics and patient care.In conclusion, the term kilohertz encapsulates a fundamental aspect of how we interact with technology and the natural world. Whether in audio production, telecommunications, or medical imaging, kilohertz serves as a bridge between theoretical concepts and practical applications. By comprehensively understanding kilohertz, individuals can better appreciate the intricacies of the devices they use daily and the science that underpins them. As technology continues to evolve, familiarity with terms like kilohertz will remain essential for both professionals and enthusiasts alike, enabling them to engage more deeply with the innovations that shape our lives.

在电子和电信领域，理解频率至关重要。其中一个常常被提及的频率单位是千赫兹，它指的是每秒一千赫兹或周期。术语千赫兹通常缩写为kHz，它在各种应用中发挥着重要作用，从广播到计算机处理速度。要理解千赫兹的重要性，我们首先必须了解赫兹的含义。赫兹（Hz）是国际单位制（SI）中的标准频率单位，表示周期波每秒的周期数。因此，当我们谈论千赫兹时，我们实际上是在讨论一个比单个赫兹高1,000倍的频率。千赫兹的概念在音频技术领域尤为相关。例如，大多数音频CD的采样率为44.1 kHz，这意味着它们每秒对声波进行44,100次采样。这个高采样率使得声音的再现具有很高的保真度，捕捉音乐和声音的细微差别。同样，在无线电通信的世界中，FM广播电台通常在88到108千赫兹的频率范围内播出。这个范围允许信号在长距离上传输清晰，为听众提供高质量的声音。此外，千赫兹在计算机处理器的上下文中也很重要。现代CPU的运行速度以千兆赫兹（GHz）为单位，表示每秒数十亿个周期。然而，计算机内部的一些组件，如系统总线或某些类型的内存，可能以千赫兹为单位运作。理解这些频率对于优化性能和确保不同硬件组件之间的兼容性至关重要。此外，千赫兹的概念不仅限于音频和计算。在医疗领域，例如，超声波机器使用以千赫兹为单位的频率来创建内部器官的图像。这些机器发出的声波穿过身体并反弹，使医疗专业人员能够在不进行侵入性程序的情况下可视化结构。操控和理解这些频率的能力对于准确的诊断和患者护理至关重要。总之，术语千赫兹概括了我们与技术和自然世界互动的基本方面。无论是在音频制作、通信还是医学成像中，千赫兹都是理论概念和实际应用之间的桥梁。通过全面理解千赫兹，个人可以更好地欣赏他们日常使用设备的复杂性以及支撑它们的科学。随着技术的不断发展，熟悉像千赫兹这样的术语将对专业人士和爱好者来说仍然至关重要，使他们能够更深入地参与塑造我们生活的创新。