poor conductor

简明释义

不良导体

英英释义

例句

1.When designing a thermos, engineers choose materials that are poor conductors to keep drinks hot or cold.

在设计保温杯时，工程师选择不良导体的材料，以保持饮料的热或冷。

2.Wood is a poor conductor of heat, making it ideal for handles on cooking utensils.

木材是一个热的不良导体，使其成为烹饪器具手柄的理想材料。

3.Rubber is a poor conductor of electricity, which is why it is used for insulation in electrical wires.

橡胶是一个电的不良导体，这就是它被用于电线绝缘的原因。

4.In comparison to metals, plastics are generally poor conductors of heat.

与金属相比，塑料通常是热的不良导体。

5.Air is a poor conductor of sound, which is why we can sometimes hear muffled noises.

空气是一个声的不良导体，这就是为什么有时我们能听到模糊的声音。

作文

In the realm of physics, we often encounter the concept of conductivity, which refers to the ability of a material to conduct electricity or heat. Among the various materials we study, some are excellent conductors, while others are termed as 导电性差的材料. Understanding the characteristics of these materials is crucial in various applications, from electrical engineering to thermal management. A 导电性差的材料 is one that does not allow electric current or heat to pass through it easily. Common examples include rubber, glass, and most plastics. These materials are often used as insulators in electrical devices, preventing unwanted flow of electricity that could lead to short circuits or other hazards. For instance, the rubber coating on electrical wires serves to protect users from electric shocks, demonstrating how a 导电性差的材料 plays a vital role in safety. The properties that make a material a 导电性差的材料 can be attributed to its atomic structure. In metals, for example, electrons are free to move, allowing electricity to flow easily. However, in insulators, the electrons are tightly bound to their atoms, restricting their movement and thus hindering conductivity. This fundamental difference explains why materials like copper and aluminum are excellent conductors, while materials like wood and rubber are considered 导电性差的材料. In everyday life, we can observe the importance of 导电性差的材料 in various scenarios. For instance, when cooking, pots and pans are often made from metals that are good conductors of heat, such as stainless steel or aluminum. However, the handles of these cookware items are typically made from 导电性差的材料 like plastic or silicone. This design choice prevents burns by ensuring that heat does not transfer to the part of the cookware that we touch. Moreover, the role of 导电性差的材料 extends beyond just electrical insulation. In the field of construction, materials such as fiberglass and foam are used for thermal insulation. These materials help maintain temperature by reducing heat transfer, showcasing another essential application of 导电性差的材料. In homes, proper insulation can lead to energy savings and increased comfort, highlighting the significance of understanding conductivity in building design. In conclusion, the study of materials classified as 导电性差的材料 reveals much about their physical properties and practical applications. Whether in electrical safety, cooking, or building construction, these materials serve critical functions that enhance our daily lives. Recognizing the importance of 导电性差的材料 allows us to make informed decisions in technology and design, ultimately leading to safer and more efficient products and environments.

在物理学领域，我们经常会遇到导电性的概念，它指的是材料传导电流或热量的能力。在我们研究的各种材料中，有些是优秀的导体，而其他的则被称为导电性差的材料。理解这些材料的特性对于从电气工程到热管理的各种应用至关重要。导电性差的材料是不容易让电流或热量通过的材料。常见的例子包括橡胶、玻璃和大多数塑料。这些材料通常用作电气设备中的绝缘体，防止电流的不必要流动，可能导致短路或其他危险。例如，电线上的橡胶涂层可以保护用户免受电击，展示了导电性差的材料在安全方面的重要作用。使材料成为导电性差的材料的特性可以归因于其原子结构。在金属中，例如，电子可以自由移动，从而允许电流轻易通过。然而，在绝缘体中，电子紧紧绑定在原子上，限制了它们的运动，从而阻碍了导电性。这一基本差异解释了为什么铜和铝是优秀的导体，而木材和橡胶被认为是导电性差的材料。在日常生活中，我们可以观察到导电性差的材料在各种场景中的重要性。例如，在烹饪时，锅和煎锅通常由良好的热导体，如不锈钢或铝制成。然而，这些炊具的手柄通常由导电性差的材料如塑料或硅胶制成。这种设计选择可以防止烫伤，确保热量不会传递到我们触摸的炊具部分。此外，导电性差的材料的作用不仅限于电气绝缘。在建筑领域，玻璃纤维和泡沫等材料用于热绝缘。这些材料通过减少热传递来帮助维持温度，展示了导电性差的材料的另一个重要应用。在家庭中，适当的绝缘可以节省能源并增加舒适度，突显了在建筑设计中理解导电性的重要性。总之，研究被归类为导电性差的材料的材料揭示了它们的物理特性和实际应用。无论是在电气安全、烹饪还是建筑施工中，这些材料都发挥着关键作用，提高了我们的日常生活。认识到导电性差的材料的重要性使我们能够在技术和设计中做出明智的决策，最终导致更安全和更高效的产品和环境。