metastable equilibrium

简明释义

亚稳定平衡

英英释义

例句

1.In physics, the concept of metastable equilibrium 亚稳态平衡 is crucial for understanding phase transitions.

在物理学中，<顺>亚稳态平衡<顺>的概念对于理解相变至关重要。

2.The glassy state of certain materials is an example of metastable equilibrium 亚稳态平衡 where the structure is not fully crystalline.

某些材料的玻璃态是一个<顺>亚稳态平衡<顺>的例子，其中结构并不是完全晶体的。

3.When water is supercooled, it can remain in a metastable equilibrium 亚稳态平衡 until a nucleation event occurs.

当水被过冷时，它可以保持在一个<顺>亚稳态平衡<顺>中，直到发生成核事件。

4.The behavior of certain proteins can be explained by their existence in a metastable equilibrium 亚稳态平衡 during folding.

某些蛋白质的行为可以通过它们在折叠过程中处于<顺>亚稳态平衡<顺>来解释。

5.In a chemical reaction, the system can exist in a state of metastable equilibrium 亚稳态平衡 before reaching its final products.

在化学反应中，系统可以在达到最终产物之前处于一个<顺>亚稳态平衡<顺>的状态。

作文

In the realm of physics and chemistry, the concept of metastable equilibrium plays a crucial role in understanding the behavior of systems that are not in their most stable state but remain in a state of relative stability for an extended period. This phenomenon can be observed in various natural processes, from the formation of clouds to the behavior of certain materials under stress. To grasp the significance of metastable equilibrium, we must first explore what equilibrium means in a broader sense.Equilibrium refers to a state where opposing forces or influences are balanced. In a stable equilibrium, any small disturbance will cause the system to return to its original state. For instance, think of a marble at the bottom of a bowl; if you push it slightly, it will roll back to the bottom. However, in a metastable equilibrium, the system is in a state that is not the lowest energy configuration. If disturbed beyond a certain threshold, it can transition to a more stable state. An example of this can be seen in supercooled liquids, which remain liquid below their freezing point until a disturbance triggers crystallization.The implications of metastable equilibrium extend beyond theoretical discussions; they have practical applications in various fields. In materials science, understanding how materials behave under different conditions can lead to innovations in product design and safety. For instance, engineers must consider the metastable equilibrium of materials when designing structures that may be subject to extreme weather conditions or seismic activity. A bridge that appears stable may become susceptible to collapse if it enters a metastable equilibrium and is then subjected to additional stress.Moreover, in biological systems, metastable equilibrium can explain phenomena such as enzyme activity and protein folding. Enzymes often exist in a metastable equilibrium state, where they can quickly change shape to catalyze reactions. If the environment changes—such as a shift in temperature or pH—the enzyme may undergo a transition to a more stable state, potentially leading to loss of function. Understanding these transitions is critical for developing drugs and therapies that target specific biochemical pathways.In environmental science, metastable equilibrium can also be observed in ecosystems. For example, a forest ecosystem may reach a metastable equilibrium after a disturbance like a wildfire. While the ecosystem appears stable, it is vulnerable to further disruptions, such as invasive species or climate change, which could push it into a new state of equilibrium. This understanding can help conservationists develop strategies to protect vulnerable ecosystems and promote resilience against external pressures.In conclusion, the concept of metastable equilibrium is fundamental to many scientific disciplines, providing insights into the behavior of systems that are not in their most stable configurations. By recognizing the importance of this concept, we can better understand the dynamics of physical, biological, and ecological systems. Whether in engineering, biology, or environmental science, acknowledging the presence of metastable equilibrium allows us to anticipate potential changes and design more effective interventions. As we continue to explore the complexities of nature, the principles of metastable equilibrium will undoubtedly remain a key area of study, guiding future research and applications across various fields.

在物理和化学领域，亚稳态平衡的概念在理解那些不处于最稳定状态但在相对稳定状态下保持较长时间的系统行为方面起着至关重要的作用。这种现象可以在各种自然过程中观察到，从云的形成到某些材料在应力下的行为。为了掌握亚稳态平衡的重要性，我们必须首先探索平衡在更广泛意义上的含义。平衡是指对立的力量或影响达到平衡的状态。在稳定平衡中，任何小的扰动都会导致系统返回到其原始状态。例如，想象一下一个位于碗底的弹珠；如果你稍微推动它，它会滚回底部。然而，在亚稳态平衡中，系统处于一个不是最低能量配置的状态。如果受到超过某个阈值的扰动，它可能会转变为一个更稳定的状态。超冷液体就是一个这种情况的例子，它们在低于冰点时仍然保持液态，直到扰动触发结晶。亚稳态平衡的影响不仅限于理论讨论；它们在各个领域都有实际应用。在材料科学中，了解材料在不同条件下的行为可以推动产品设计和安全性的创新。例如，工程师在设计可能遭受极端天气条件或地震活动影响的结构时，必须考虑材料的亚稳态平衡。看似稳定的桥梁，如果进入了亚稳态平衡并受到额外的压力，可能会变得易于崩溃。此外，在生物系统中，亚稳态平衡可以解释酶活性和蛋白质折叠等现象。酶通常以亚稳态平衡的状态存在，其中它们可以快速改变形状以催化反应。如果环境发生变化，例如温度或pH值的变化，酶可能会经历转变为更稳定的状态，这可能导致功能丧失。理解这些转变对于开发靶向特定生化途径的药物和疗法至关重要。在环境科学中，亚稳态平衡也可以在生态系统中观察到。例如，森林生态系统在经历火灾等扰动后可能达到亚稳态平衡。虽然生态系统看似稳定，但它对进一步的干扰（如入侵物种或气候变化）非常脆弱，这可能会将其推向新的平衡状态。这种理解可以帮助保护主义者制定策略，以保护脆弱的生态系统，并促进抵御外部压力的韧性。总之，亚稳态平衡的概念是许多科学学科的基础，为理解不处于最稳定配置的系统的行为提供了深刻的见解。通过认识到这一概念的重要性，我们可以更好地理解物理、生物和生态系统的动态。无论是在工程、生命科学还是环境科学中，承认亚稳态平衡的存在使我们能够预测潜在变化并设计更有效的干预措施。随着我们继续探索自然的复杂性，亚稳态平衡的原理无疑将仍然是一个关键的研究领域，指导未来在各个领域的研究和应用。