phase change

简明释义

相位变化

英英释义

例句

1.The phase change 相变 from solid to liquid occurs at the melting point.

固体到液体的相变 phase change发生在熔点。

2.The phase change 相变 of ice melting into water is a common example in everyday life.

冰融化成水的相变 phase change是日常生活中的一个常见例子。

3.During the phase change 相变, energy is either absorbed or released.

在相变 phase change过程中，能量要么被吸收，要么被释放。

4.When water boils, it undergoes a phase change 相变 from liquid to gas.

当水沸腾时，它经历了一个相变 phase change，从液体变为气体。

5.In thermodynamics, understanding phase change 相变 is crucial for predicting material behavior.

在热力学中，理解相变 phase change对于预测材料行为至关重要。

作文

Phase changes are fascinating phenomena that occur in nature, marking the transition of matter from one state to another. These changes are not only crucial in scientific studies but also play a significant role in our daily lives. Understanding phase change (相变) can help us comprehend various natural processes and the behavior of different materials under varying conditions.The most common phase change (相变) that we encounter is the transition between solid, liquid, and gas. For example, when ice melts into water, it undergoes a phase change (相变) from solid to liquid. This process requires energy in the form of heat, which is absorbed by the ice, causing its molecules to vibrate more rapidly until they break free from their rigid structure. Conversely, when water freezes, it releases energy and transitions back to a solid state. Similarly, when water boils, it transforms into steam, demonstrating another phase change (相变) as it shifts from liquid to gas.These phase changes (相变) are not just simple transformations; they involve intricate molecular interactions and energy exchanges. The concept of latent heat is essential in understanding these processes. Latent heat refers to the amount of energy absorbed or released during a phase change (相变) without a change in temperature. This principle explains why ice can exist at 0 degrees Celsius while still being solid, as it absorbs heat to melt but does not increase in temperature until completely transitioned to water.In addition to the physical changes, phase changes (相变) also have implications in various fields such as meteorology, engineering, and environmental science. For instance, in meteorology, the phase change (相变) of water is critical for understanding weather patterns. The formation of clouds and precipitation involves the condensation of water vapor, which is a phase change (相变) from gas to liquid. This process is vital for the water cycle, influencing climate and ecosystems.In engineering, controlling phase changes (相变) is essential for designing materials with specific properties. For example, phase change materials (PCMs) are used in thermal energy storage systems. These materials absorb and release heat during phase changes (相变), helping to regulate temperatures in buildings and improve energy efficiency. By selecting materials that undergo phase changes (相变) at desired temperatures, engineers can create systems that optimize energy use and enhance comfort.Moreover, the study of phase changes (相变) extends to environmental science, particularly in understanding climate change. Melting glaciers and polar ice caps represent significant phase changes (相变) that contribute to rising sea levels. As global temperatures increase, the rate of ice melting accelerates, highlighting the interconnectedness of phase changes (相变) and environmental impact.In conclusion, phase changes (相变) are fundamental to both natural phenomena and technological applications. They illustrate the dynamic nature of matter and the energy exchanges that govern our world. By studying phase changes (相变), we gain insights into various scientific principles and can apply this knowledge to solve real-world problems. Whether in understanding weather patterns, engineering innovative materials, or addressing climate change, the significance of phase changes (相变) cannot be overstated.