apparent density

简明释义

表观密度

英英释义

例句

1.In ceramics, the apparent density can affect the final product's strength and durability.

在陶瓷中，表观密度会影响最终产品的强度和耐久性。

2.Researchers found that the apparent density of the powder increased after compaction.

研究人员发现，压实后粉末的表观密度增加了。

3.The apparent density of the soil was analyzed to assess its load-bearing capacity.

对土壤的表观密度进行分析，以评估其承载能力。

4.Different types of aggregates have varying apparent density, which influences concrete mix design.

不同类型的骨料具有不同的表观密度，这会影响混凝土的配合设计。

5.The apparent density of the material was measured to determine its suitability for construction.

该材料的表观密度被测量以确定其在建筑中的适用性。

作文

Understanding the concept of apparent density is crucial in various scientific and engineering fields. This term refers to the mass of a material per unit volume, including the volume of the pores or voids within the material. Unlike true density, which considers only the solid particles, apparent density provides a more comprehensive view of how materials behave under different conditions. For instance, in construction, knowing the apparent density of concrete can help engineers determine its strength and suitability for specific applications. In the context of materials science, apparent density plays a significant role in the characterization of powders and granules. When dealing with powdered substances, such as pharmaceuticals or food products, understanding their apparent density helps in optimizing formulations and ensuring consistent quality. A higher apparent density often indicates a more compact material, which can influence the flowability and packing behavior during processing. Moreover, in environmental science, apparent density is important when assessing soil properties. Soil scientists measure the apparent density of soil to understand its compaction level, porosity, and ability to retain water. These factors are essential for agriculture, as they directly affect plant growth and crop yields. For example, soils with low apparent density are generally more porous, allowing for better water infiltration and root development. The measurement of apparent density can be performed using various techniques, such as the Archimedes principle or by using a gas pycnometer. Each method has its advantages and limitations, depending on the type of material being analyzed. It is essential to select an appropriate technique to obtain accurate results. In conclusion, the concept of apparent density is multifaceted and essential across different disciplines. Its implications range from construction and manufacturing to environmental studies and agriculture. By understanding and measuring apparent density, professionals can make informed decisions that enhance the performance and sustainability of materials and processes. As we continue to explore new materials and technologies, the importance of apparent density will only grow, making it a key parameter in the advancement of various industries.

理解表观密度的概念在各个科学和工程领域中至关重要。这个术语指的是每单位体积内材料的质量，包括材料内部孔隙或空隙的体积。与仅考虑固体颗粒的真实密度不同，表观密度提供了对材料在不同条件下行为的更全面的视角。例如，在建筑中，了解混凝土的表观密度可以帮助工程师确定其强度和适用性。 在材料科学的背景下，表观密度在粉末和颗粒的表征中发挥着重要作用。当处理粉末物质，如药品或食品产品时，理解其表观密度有助于优化配方并确保一致的质量。较高的表观密度通常表示材料更为紧凑，这可能会影响加工过程中的流动性和堆积行为。 此外，在环境科学中，表观密度在评估土壤特性时也很重要。土壤科学家测量土壤的表观密度以了解其压实程度、孔隙率及水分保持能力。这些因素对农业至关重要，因为它们直接影响植物生长和作物产量。例如，低表观密度的土壤通常更具孔隙性，允许更好的水分渗透和根系发育。 表观密度的测量可以通过多种技术进行，例如阿基米德原理或使用气体比重计。每种方法都有其优缺点，具体取决于所分析的材料类型。选择合适的技术以获得准确结果至关重要。 总之，表观密度的概念是多方面的，并且在不同学科中至关重要。它的影响范围从建筑和制造到环境研究和农业。通过理解和测量表观密度，专业人员可以做出明智的决策，从而提高材料和工艺的性能和可持续性。随着我们继续探索新材料和技术，表观密度的重要性只会增加，使其成为各个行业发展的关键参数。