thermal expansion

简明释义

热膨胀

英英释义

例句

1.Engineers must account for thermal expansion 热膨胀 when constructing pipelines to prevent leaks.

工程师在建造管道时必须考虑热膨胀以防止泄漏。

2.The bridge was designed to accommodate thermal expansion 热膨胀 due to temperature changes throughout the year.

这座桥的设计考虑了由于一年中温度变化导致的热膨胀。

3.A glass container can break if it experiences rapid thermal expansion 热膨胀 when heated.

如果玻璃容器在加热时经历快速的热膨胀，可能会破裂。

4.The metal in the railway tracks expands during hot weather, which is a common example of thermal expansion 热膨胀.

铁路轨道中的金属在炎热天气中膨胀，这是热膨胀的一个常见例子。

5.In solid-state physics, thermal expansion 热膨胀 is an important property that affects material behavior.

在固态物理中，热膨胀是影响材料行为的重要特性。

作文

Thermal expansion is a fundamental concept in physics and engineering, referring to the tendency of matter to change its shape, area, and volume in response to a change in temperature. When substances are heated, their particles move more vigorously and tend to occupy more space, leading to an increase in size. This phenomenon is critical in various applications, from everyday objects to complex engineering systems. Understanding thermal expansion (热膨胀) is essential for designing structures, machinery, and even everyday items like bridges and railways.For example, consider the construction of bridges. Engineers must account for thermal expansion (热膨胀) when designing these structures. As temperatures rise during the summer, the metal components of a bridge can expand significantly. If this expansion is not properly accommodated through expansion joints or flexible materials, the bridge could suffer structural damage or even catastrophic failure. Therefore, knowledge of thermal expansion (热膨胀) is crucial for ensuring the safety and longevity of such infrastructures.Similarly, in the field of thermodynamics, thermal expansion (热膨胀) plays a vital role in understanding how gases behave under varying temperatures. According to Charles's Law, the volume of a gas is directly proportional to its temperature when pressure is held constant. This principle illustrates that as the temperature of a gas increases, its volume expands. This relationship has practical implications in various industries, such as automotive and aerospace, where engineers must design systems that can withstand significant temperature fluctuations.In everyday life, we encounter thermal expansion (热膨胀) in numerous ways. For instance, when you heat a metal lid to open a jar, the lid expands more than the glass jar due to thermal expansion (热膨胀). This slight difference in expansion allows the lid to loosen, making it easier to remove. Another common example is the use of bimetallic strips in thermostats. These strips consist of two different metals bonded together, each with distinct rates of thermal expansion (热膨胀). As temperatures change, the strip bends due to the differing expansions, enabling the thermostat to regulate heating and cooling systems effectively.Moreover, thermal expansion (热膨胀) is also observed in liquids. For instance, water expands when heated, which is why it is essential to leave some space in containers when storing liquids at high temperatures. Failure to account for this expansion could result in spills or even breakage of containers.In conclusion, thermal expansion (热膨胀) is an essential concept that permeates various aspects of science and engineering. Its effects can be seen in everything from the design of bridges and vehicles to everyday household items. Understanding how different materials respond to temperature changes enables engineers and scientists to create safer, more efficient designs. As our world continues to evolve and technology advances, the importance of mastering concepts like thermal expansion (热膨胀) will only grow, highlighting the need for continued education and awareness in this critical area of study.

热膨胀是物理学和工程学中的一个基本概念，指的是物质在温度变化时改变其形状、面积和体积的倾向。当物质被加热时，其粒子的运动更加剧烈，并且往往会占据更多的空间，从而导致尺寸的增加。这种现象在从日常物品到复杂工程系统的各种应用中都至关重要。理解热膨胀（thermal expansion）对于设计结构、机械，甚至是像桥梁和铁路这样的日常物品是必不可少的。例如，考虑桥梁的建设。工程师在设计这些结构时必须考虑热膨胀（thermal expansion）。当夏季气温上升时，桥梁的金属部件可能会显著扩展。如果这种扩展没有通过伸缩缝或柔性材料得到妥善处理，桥梁可能会遭受结构损坏甚至灾难性失败。因此，了解热膨胀（thermal expansion）对于确保此类基础设施的安全和耐久性至关重要。同样，在热力学领域，热膨胀（thermal expansion）在理解气体在不同温度下的行为中起着重要作用。根据查尔斯定律，在压力保持不变的情况下，气体的体积与其温度成正比。这个原理说明，随着气体温度的升高，其体积会膨胀。这一关系在汽车和航空等各个行业具有实际意义，工程师必须设计能够承受显著温度波动的系统。在日常生活中，我们以多种方式遇到热膨胀（thermal expansion）。例如，当你加热金属盖子以打开罐子时，由于热膨胀（thermal expansion），盖子的膨胀程度超过玻璃罐。这种微小的膨胀差异使得盖子松动，更容易取下。另一个常见的例子是在恒温器中使用双金属条。这些条由两种不同的金属焊接在一起，每种金属的热膨胀（thermal expansion）速率不同。随着温度的变化，条会因膨胀差异而弯曲，使恒温器能够有效地调节供暖和制冷系统。此外，液体中也观察到了热膨胀（thermal expansion）。例如，水在加热时会膨胀，这就是为什么在高温存储液体时必须在容器中留一些空间。如果不考虑这种膨胀，可能会导致溢出甚至容器破裂。总之，热膨胀（thermal expansion）是一个渗透于科学和工程各个方面的重要概念。其影响可以在从桥梁和车辆的设计到日常家庭用品的方方面面中看到。理解不同材料如何对温度变化作出反应，使工程师和科学家能够创造更安全、更高效的设计。随着我们的世界不断发展，技术进步，掌握像热膨胀（thermal expansion）这样的概念的重要性只会增加，这突显了在这一关键研究领域继续教育和意识提升的必要性。