oscillations

简明释义

英[ˌɒs.ɪˈleɪ.ʃənz]美[ˌɑː.sɪˈleɪ.ʃənz]

n. [力]振动；振幅（oscillation 的复数形式）

英英释义

单词用法

同义词

反义词

例句

1.But till now, the stability of system, especially the oscillations of buffer occupancy have not been the focus of research in congestion control.

但目前在拥塞控制方面的研究对于网络节点的缓冲占有量的抖动性即系统稳定性考虑不多。

2.In addition, we investigated the neural oscillations linked to identification of environmental and personal risks.

我们还分析了与识别环境和个人风险相关的神经振荡活动。

3.What does seem clear is that these oscillations have nothing to do with global warming, or, for that matter, global cooling.

似乎可以肯定的是，北极涛动和全球气候变暖无关，与全球气候变冷更不沾边。

4.Some of the problems that may result include oscillations, negative readings and generally unstable readings.

这时可能产生的问题包括：振荡、负读数以及通常不稳定读数。

5.In the Arctic these oscillations occur about every 60 to 70 years.

在北极，这些振荡大约每隔60至70年就出现一次。

6.The glaciers could be retreating because of one of the countless natural oscillations in the climate that scientists do not properly understand.

冰川的缩小，可能是缘于气候科学家们尚未真正搞懂的无数自然振荡中的一种。

7.It should not have some special properties such as neutrino oscillations.

不应该存在一些独特的性质如所谓中微子振荡现象。

8.Similar soil conditions and similar jelly like oscillations have been reported in Japan.

在日本也报导过类似的土壤条件和类似的果酱般的振动。

9.The scientist measured the oscillations of the spring to determine its stiffness.

科学家测量了弹簧的振荡以确定其刚度。

10.The oscillations in the stock market can indicate economic trends.

股市中的振荡可以指示经济趋势。

11.During the earthquake, the oscillations of the ground caused significant damage.

在地震期间，地面的振荡造成了严重损害。

12.In electronics, the oscillations of a circuit can produce radio waves.

在电子学中，电路的振荡可以产生无线电波。

13.The pendulum's oscillations are a classic example of simple harmonic motion.

钟摆的振荡是简单谐运动的经典例子。

作文

In the realm of physics, oscillations refer to the repetitive variations, typically in time, of some measure about a central value or between two or more different states. These phenomena can be observed in various contexts, from the swinging of a pendulum to the vibrations of a guitar string. Understanding oscillations is crucial for grasping many fundamental principles of science and engineering. One of the most common examples of oscillations is the motion of a pendulum. When a pendulum swings back and forth, it demonstrates a periodic motion that can be described mathematically. The time it takes to complete one full swing is known as the period, while the maximum displacement from the center is referred to as the amplitude. This simple system reveals significant insights into the nature of oscillations. For instance, the frequency of the oscillation is determined by the length of the pendulum and the acceleration due to gravity. Another fascinating example can be found in sound waves, which are essentially oscillations of air particles. When a guitar string is plucked, it vibrates, causing the surrounding air to oscillate. These air oscillations travel through space and reach our ears, where they are interpreted as sound. The frequency of these oscillations determines the pitch of the sound we hear; higher frequencies result in higher pitches, while lower frequencies produce lower pitches. In addition to physical systems, oscillations can also be observed in biological contexts. For example, the heart beats in a rhythmic pattern, characterized by regular oscillations in blood pressure and volume. This cyclic behavior is essential for maintaining life, as it ensures that oxygen and nutrients are efficiently delivered to tissues throughout the body. Researchers study these biological oscillations to understand various health conditions, such as arrhythmias or other cardiovascular diseases. Moreover, oscillations are not limited to natural phenomena; they also play a significant role in technology. In electronics, oscillators are circuits that generate repetitive signals, often used in clocks, radios, and computers. These electronic oscillations are critical for synchronizing operations and enabling communication between devices. For example, quartz crystal oscillators are commonly used in watches to keep accurate time, relying on the stable oscillations of the quartz crystal. Understanding oscillations extends beyond mere observation; it involves analyzing their properties and behaviors. Scientists and engineers use mathematical models to describe oscillations, which can help predict how systems will behave under different conditions. For instance, in mechanical engineering, analyzing the oscillations of structures can prevent resonance, a phenomenon that can lead to catastrophic failures, such as the collapse of bridges during earthquakes. In conclusion, oscillations are a fundamental concept that permeates various fields of study. From physics and biology to engineering and technology, understanding oscillations allows us to comprehend the underlying principles governing our world. By studying these repetitive motions, we gain valuable insights that can lead to advancements in science and improvements in everyday life. Whether it's the gentle sway of a pendulum, the harmonious sounds of music, or the intricate rhythms of the human body, oscillations remind us of the beauty and complexity of the universe we inhabit.

在物理学领域，oscillations 指的是某个测量值围绕中心值或在两种或多种不同状态之间的重复变化，通常是随时间而变化的。这些现象可以在各种背景下观察到，从摆的摆动到吉他弦的振动。理解oscillations 对于掌握科学和工程的许多基本原理至关重要。最常见的oscillations 示例之一是摆的运动。当一个摆来回摆动时，它展示了一种周期性运动，可以用数学描述。完成一次完整摆动所需的时间称为周期，而从中心的最大位移被称为振幅。这个简单的系统揭示了关于oscillations 的重要见解。例如，振荡的频率由摆的长度和重力加速度决定。另一个迷人的例子可以在声波中找到，这本质上是空气粒子的oscillations。当吉他弦被拨动时，它会振动，导致周围的空气发生振荡。这些空气oscillations 通过空间传播并到达我们的耳朵，在那里它们被解读为声音。这些oscillations 的频率决定了我们听到的声音的音高；较高的频率产生较高的音调，而较低的频率产生较低的音调。除了物理系统，oscillations 还可以在生物学背景中观察到。例如，心脏以有节奏的模式跳动，其特征是血压和血容量的规律性oscillations。这种周期性行为对于维持生命至关重要，因为它确保氧气和营养物质有效地输送到全身组织。研究人员研究这些生物oscillations 以了解各种健康状况，例如心律失常或其他心血管疾病。此外，oscillations 不仅限于自然现象；它们在技术中也发挥着重要作用。在电子学中，振荡器是产生重复信号的电路，通常用于时钟、收音机和计算机。这些电子oscillations 对于同步操作和设备之间的通信至关重要。例如，石英晶体振荡器通常用于手表中，以保持准确的时间，依赖于石英晶体的稳定oscillations。理解oscillations 超越了单纯的观察；它涉及分析其特性和行为。科学家和工程师使用数学模型来描述oscillations，这可以帮助预测系统在不同条件下的行为。例如，在机械工程中，分析结构的oscillations 可以防止共振，这是一种可能导致灾难性故障的现象，比如地震期间桥梁的倒塌。总之，oscillations 是一个渗透多个研究领域的基本概念。从物理学和生物学到工程和技术，理解oscillations 使我们能够理解支配我们世界的基本原理。通过研究这些重复的运动，我们获得了有价值的见解，这可以推动科学进步和改善日常生活。无论是摆的轻微摇摆、音乐的和谐声音，还是人体复杂的节奏，oscillations 都提醒我们宇宙的美丽和复杂。