grade of expansion

简明释义

膨胀度

英英释义

例句

1.Understanding the grade of expansion helps in selecting the right materials for thermal insulation.

理解膨胀等级有助于选择合适的材料进行热绝缘。

2.The engineer specified the grade of expansion for the materials used in the construction project to ensure stability.

工程师指定了建筑项目中使用材料的膨胀等级以确保稳定性。

3.The grade of expansion affects how well the bridge can handle temperature changes.

桥梁的膨胀等级影响其如何应对温度变化。

4.Different metals have varying grades of expansion, which is crucial for engineering applications.

不同金属具有不同的膨胀等级，这对工程应用至关重要。

5.In the laboratory, we need to measure the grade of expansion of the polymer when exposed to heat.

在实验室中，我们需要测量聚合物在加热时的膨胀等级。

作文

The concept of grade of expansion is essential in various fields, including physics, engineering, and even economics. In simple terms, the grade of expansion refers to the degree to which a material or system expands when subjected to heat or pressure. This phenomenon can be observed in everyday life, such as when metal objects expand when heated or when gases fill a container. Understanding the grade of expansion is crucial for engineers who design structures that must withstand temperature fluctuations, ensuring safety and durability. For instance, bridges and buildings are constructed with materials that account for their grade of expansion, preventing structural failures due to thermal stress.In physics, the grade of expansion is often quantified using coefficients that express how much a specific material expands per degree of temperature change. This measurement is vital for scientists and engineers alike, as it allows them to predict how materials will behave under varying conditions. For example, when designing an engine, engineers must consider the grade of expansion of different components to ensure they fit together correctly, even when heated during operation. If these considerations are overlooked, it could lead to catastrophic failures, costing companies millions of dollars and potentially endangering lives.Moreover, the grade of expansion is not only limited to physical materials. In economics, it can describe the growth rate of an economy or market. Economists analyze the grade of expansion of various sectors to forecast future trends and make informed decisions. A high grade of expansion indicates a robust economy, while a low or negative grade of expansion may signal economic downturns. Investors often look at these indicators to determine where to allocate their resources, making the grade of expansion a critical factor in financial planning and investment strategies.In conclusion, the grade of expansion is a versatile concept that applies across multiple disciplines. Whether in the context of physical materials or economic growth, understanding the grade of expansion enables professionals to make informed decisions that impact safety, efficiency, and profitability. As we continue to advance technologically and economically, a deep comprehension of the grade of expansion will remain vital for innovation and progress in our society.

“扩展等级”这一概念在物理学、工程学甚至经济学等多个领域中至关重要。简单来说，扩展等级是指当材料或系统受到热量或压力时，其扩展的程度。这一现象可以在日常生活中观察到，例如金属物体在加热时会膨胀，气体则充满容器。理解扩展等级对于设计必须承受温度波动的结构的工程师来说至关重要，从而确保安全性和耐用性。例如，桥梁和建筑物的建造使用了考虑到其扩展等级的材料，以防止由于热应力导致的结构失效。在物理学中，扩展等级通常通过系数进行量化，这些系数表示特定材料在每度温度变化下会膨胀多少。这一测量对于科学家和工程师来说至关重要，因为它使他们能够预测材料在不同条件下的行为。例如，在设计发动机时，工程师必须考虑不同部件的扩展等级，以确保它们在工作时即使被加热也能正确配合。如果忽视这些考虑，可能会导致灾难性的故障，使公司损失数百万美元，并可能危及生命。此外，扩展等级不仅限于物理材料。在经济学中，它可以描述经济或市场的增长率。经济学家分析各个部门的扩展等级，以预测未来趋势并做出明智的决策。高扩展等级表明经济强劲，而低或负的扩展等级可能预示着经济衰退。投资者通常会关注这些指标，以确定将资源分配到哪里，因此扩展等级成为财务规划和投资策略中的关键因素。总之，扩展等级是一个适用于多个学科的多功能概念。无论是在物质材料的上下文中还是经济增长的背景下，理解扩展等级使专业人士能够做出影响安全性、效率和盈利能力的明智决策。随着我们在技术和经济上的不断进步，对扩展等级的深刻理解仍将对我们社会的创新和进步至关重要。