frequencies

简明释义

英[ˈfriːkwənsɪz]美[ˈfrikwənˌsiz]

n. 频率（frequency 的复数形式）；频数分析；次数分配表

英英释义

单词用法

同义词

反义词

例句

1.Coupling associates each ion with both characteristic frequencies.

耦合使每个离子都具有了两个电子的特征频率。

2.Higher frequencies can carry more data, but lose power rapidly over distance.

频率越高，能传输的数据量越大，但相同距离下能量损失得越快。

3.These lines are produced by lamps, and the frequencies are very well known.

这些线由灯光产生，频率，是众所周知的。

4.The lower frequencies travel well but can't carry as much information.

频率越低传输距离越远，但数据传输率越低。

5.Conditional frequencies are perhaps more interesting than plain histograms.

条件频率分布可能比普通的直方图更有趣。

6.From this, they can determine the lowest resonant frequencies.

据此，他们就可以确定最低的共振频率。

7.The problem has to do with how radio frequencies are assigned.

这个问题和无线电频率的分配方式有关。

8.The radio station broadcasts at different frequencies.

这个广播电台在不同的频率上播出。

9.Doctors monitor heart frequencies to check for irregularities.

医生监测心脏的频率以检查是否有不规则现象。

10.Different animals can hear sounds at varying frequencies.

不同的动物能听到不同频率的声音。

11.In physics, light waves have different frequencies that determine their color.

在物理学中，光波具有不同的频率，这决定了它们的颜色。

12.The scientist studied the frequencies of the sound waves produced by the instrument.

科学家研究了该仪器产生的声波的频率。

作文

Understanding the concept of frequencies is essential in various fields, including science, music, and communication. In physics, frequencies refer to the number of occurrences of a repeating event per unit of time. For instance, when we talk about sound waves, the frequencies determine the pitch of the sound. Higher frequencies produce higher-pitched sounds, while lower frequencies result in deeper tones. This principle is not only fundamental to acoustics but also crucial for understanding how we perceive sound in our daily lives. In the realm of music, frequencies play a vital role in the composition and enjoyment of musical pieces. Each musical note corresponds to a specific frequency. For example, the note A above middle C has a frequency of 440 Hz. Musicians often use this knowledge to tune their instruments so that they can play harmoniously together. The relationship between different frequencies creates chords and melodies that evoke various emotions in listeners. Understanding these relationships helps musicians create more engaging and dynamic performances. Moreover, in communication technology, frequencies are critical for transmitting information. Radio waves, for instance, operate at specific frequencies to carry signals over distances. Different radio stations broadcast at different frequencies, allowing listeners to tune into their preferred channels without interference. Similarly, mobile phones utilize various frequencies to connect calls and transmit data, ensuring that users can communicate effectively regardless of their location. The study of frequencies extends beyond just sound and communication. In medicine, frequencies are used in diagnostic tools such as ultrasound machines. These devices emit sound waves at specific frequencies to create images of the inside of the body. The frequencies must be carefully chosen to ensure that they can penetrate tissues and provide clear images without causing harm to the patient. This application underscores the importance of frequencies in advancing medical technology and improving patient care. In conclusion, the term frequencies encompasses a wide range of applications across various disciplines. From the science of sound to the art of music and the technology of communication, understanding frequencies allows us to appreciate the complexities of the world around us. As we continue to explore and innovate in these fields, the significance of frequencies will undoubtedly remain a cornerstone of our understanding and progress. By grasping the concept of frequencies, we open ourselves to a deeper comprehension of both the natural and technological worlds, enhancing our ability to engage with and contribute to society.

理解频率这一概念在多个领域中至关重要，包括科学、音乐和通信。在物理学中，频率指的是单位时间内重复事件发生的次数。例如，当我们谈论声波时，频率决定了声音的音调。较高的频率产生较高音调的声音，而较低的频率则会导致更深沉的音调。这一原理不仅是声学的基础，也是理解我们日常生活中如何感知声音的关键。 在音乐领域，频率在音乐作品的创作和欣赏中发挥着重要作用。每个音乐音符对应于一个特定的频率。例如，中音C上方的A音符的频率为440赫兹。音乐家通常利用这些知识来调音，以便他们能够和谐地演奏在一起。不同频率之间的关系创造了和弦和旋律，唤起听众的各种情感。理解这些关系帮助音乐家创作出更吸引人和富有活力的表演。 此外，在通信技术中，频率对信息传输至关重要。例如，无线电波以特定的频率运行，以便在距离上携带信号。不同的广播电台在不同的频率上广播，使听众能够调到自己喜欢的频道而不干扰。同样，手机利用各种频率来连接电话和传输数据，确保用户无论身处何地都能有效沟通。 频率的研究不仅限于声音和通信。在医学中，频率被应用于诊断工具，如超声波机。这些设备以特定的频率发出声波，以创建身体内部的图像。频率必须经过仔细选择，以确保它们能够穿透组织并提供清晰的图像，同时不会对患者造成伤害。这一应用突显了频率在推进医疗技术和改善患者护理中的重要性。 总之，频率这一术语涵盖了各个学科的广泛应用。从声音科学到音乐艺术，再到通信技术，理解频率使我们能够欣赏周围世界的复杂性。随着我们在这些领域的不断探索和创新，频率的重要性无疑将继续成为我们理解和进步的基石。通过掌握频率的概念，我们打开了对自然和技术世界更深层次理解的大门，增强了我们与社会互动和贡献的能力。