air voids

简明释义

1. 含气率; 2. 空隙率; 3. 气孔;

英英释义

例句

1.The presence of air voids in insulation materials can lead to energy loss.

绝缘材料中的气孔会导致能量损失。

2.During the inspection, we found that the air voids in the foam were larger than expected.

在检查过程中，我们发现泡沫中的气孔比预期的大。

3.Engineers used advanced imaging techniques to detect air voids in the composite materials.

工程师使用先进的成像技术检测复合材料中的气孔。

4.To ensure durability, it is important to minimize air voids in the asphalt mix.

为了确保耐久性，减少沥青混合物中的气孔是很重要的。

5.The construction team discovered several air voids in the concrete, which could compromise its strength.

施工队发现混凝土中有几个气孔，这可能会影响其强度。

作文

Air voids are an essential concept in various fields, particularly in civil engineering and materials science. They refer to the small spaces or gaps within a material that are filled with air rather than solid matter. Understanding these air voids (空气空隙) is crucial for several reasons, especially when it comes to the durability and performance of construction materials.In concrete, for instance, air voids (空气空隙) play a significant role in determining the material's strength and longevity. When concrete is poured, it is often subjected to vibrations that can cause some of the air trapped in the mix to escape. However, if too many air voids (空气空隙) are present, the concrete may become weaker and more susceptible to cracking and other forms of damage. This is why engineers must carefully calculate the amount of air that should be included in the concrete mixture to ensure optimal performance.Moreover, air voids (空气空隙) can also affect the thermal properties of materials. For example, insulation materials often rely on air voids (空气空隙) to reduce heat transfer. The presence of these air-filled spaces can significantly enhance the material's insulating properties, making it more effective at keeping buildings warm in winter and cool in summer. Therefore, understanding how to manipulate air voids (空气空隙) in insulation materials can lead to more energy-efficient buildings.Another area where air voids (空气空隙) are critical is in the manufacturing of asphalt. In asphalt mixtures, the correct balance of air voids (空气空隙) can influence the pavement's performance. Too many air voids (空气空隙) can result in a porous surface that may degrade quickly under traffic loads, while too few can lead to issues with drainage and increased susceptibility to water damage. Engineers must carefully design asphalt mixes to optimize air voids (空气空隙) for durability and safety.Furthermore, air voids (空气空隙) are not only limited to construction materials. In food science, for example, air voids (空气空隙) can impact the texture and freshness of products. Baked goods like bread rely on the presence of air voids (空气空隙) to create a light and fluffy texture. The fermentation process produces gases that form these voids, which are essential for the final product's quality.In conclusion, air voids (空气空隙) are a fundamental aspect of both natural and manufactured materials. Their presence can significantly influence physical properties such as strength, insulation, and texture. Whether in concrete, asphalt, or food products, the management of air voids (空气空隙) is crucial for achieving desired outcomes. By understanding and controlling these air-filled spaces, engineers, architects, and food scientists can improve the quality and performance of their respective materials, leading to better structures, safer roads, and tastier foods.