heat expansion

简明释义

热膨胀

英英释义

例句

1.The scientist demonstrated how heat expansion 热膨胀 can lead to cracks in materials.

科学家演示了热膨胀 heat expansion 如何导致材料出现裂缝。

2.When metal is heated, it undergoes heat expansion 热膨胀, causing the metal to expand.

当金属被加热时，它会经历热膨胀 heat expansion，导致金属膨胀。

3.In construction, heat expansion 热膨胀 must be accounted for to prevent structural damage.

在建筑中，必须考虑热膨胀 heat expansion 以防止结构损坏。

4.Understanding heat expansion 热膨胀 is crucial for designing railway tracks.

理解热膨胀 heat expansion 对于设计铁路轨道至关重要。

5.The engineer explained how heat expansion 热膨胀 affects the integrity of bridges in hot weather.

工程师解释了在炎热天气中，热膨胀 heat expansion 如何影响桥梁的完整性。

作文

Heat is a form of energy that affects the motion of particles within a substance. When a material is heated, its particles gain energy and move more vigorously. This increased movement causes the material to expand, a phenomenon known as heat expansion. 热膨胀 occurs in solids, liquids, and gases, but the degree of expansion varies among different materials. Understanding heat expansion is crucial in various fields, including engineering, construction, and everyday life.In engineering, the principles of heat expansion are applied when designing structures and machinery. For instance, bridges are built with expansion joints that allow for the natural expansion and contraction of materials due to temperature changes. Without these joints, the stress caused by heat expansion could lead to structural damage or failure. Similarly, railway tracks are laid with gaps to accommodate the heat expansion of metal during hot weather, preventing dangerous buckling.In construction, builders must consider heat expansion when selecting materials for buildings. Different materials expand at different rates; for example, metals typically expand more than concrete. This difference can lead to issues if not properly managed. In regions with extreme temperature fluctuations, it is essential to use materials that can withstand the stresses caused by heat expansion without compromising the integrity of the structure.Everyday life also provides numerous examples of heat expansion. A common instance is when a metal lid is difficult to open on a glass jar. Heating the lid slightly can cause it to expand more than the glass, making it easier to remove. Similarly, when cooking, the heat expansion of water as it boils leads to the formation of steam, which is used in various cooking methods.Moreover, understanding heat expansion is vital in the field of thermodynamics, where it plays a role in the behavior of gases. When gas is heated, it expands, which can be observed in phenomena such as hot air balloons rising. The air inside the balloon heats up, causing it to expand and become less dense than the cooler air outside, resulting in lift.In summary, heat expansion is a fundamental concept that affects many aspects of our lives and the world around us. From engineering and construction to everyday activities, the effects of heat expansion are everywhere. Recognizing and understanding this phenomenon allows us to design better structures, create more efficient machines, and even solve simple problems in our daily routines. As we continue to explore the principles of physics, the significance of heat expansion will undoubtedly remain a critical topic for both scientific inquiry and practical application.

热是影响物质内部粒子运动的一种能量形式。当材料被加热时，其粒子获得能量并更加剧烈地运动。这种运动的增加导致材料膨胀，这一现象称为热膨胀。热膨胀发生在固体、液体和气体中，但不同材料的膨胀程度各不相同。理解热膨胀在工程、建筑和日常生活等多个领域至关重要。在工程学中，热膨胀的原理被应用于设计结构和机械。例如，桥梁的建造采用了膨胀缝，允许材料因温度变化而自然扩展和收缩。如果没有这些缝隙，由于热膨胀造成的压力可能会导致结构损坏或失败。同样，铁路轨道的铺设也留有间隙，以适应热天气下金属的热膨胀，防止危险的翘曲。在建筑中，建筑工人在选择建筑材料时必须考虑热膨胀。不同材料的膨胀速率不同；例如，金属通常比混凝土膨胀得更多。这种差异如果不加以管理，会导致问题。在极端温度波动的地区，使用能够承受由于热膨胀引起的压力而不影响结构完整性的材料是至关重要的。日常生活中也有许多关于热膨胀的例子。一个常见的例子是，当金属盖在玻璃罐上难以打开时，稍微加热盖子可以使其膨胀得比玻璃多，从而更容易取下。同样，在烹饪时，水在沸腾时的热膨胀导致蒸汽的形成，这在各种烹饪方法中都有应用。此外，理解热膨胀在热力学领域也是至关重要的，它在气体行为中发挥着作用。当气体被加热时，它会膨胀，这可以在热气球升空等现象中观察到。气球内的空气被加热，导致其膨胀并变得比外面较冷的空气密度低，从而产生升力。总之，热膨胀是一个基本概念，影响着我们生活的许多方面以及我们周围的世界。从工程和建筑到日常活动，热膨胀的影响无处不在。认识和理解这一现象使我们能够设计更好的结构，创造更高效的机器，甚至解决我们日常生活中的简单问题。随着我们继续探索物理原理，热膨胀的重要性无疑将仍然是科学研究和实际应用中的关键主题。