bulk density

简明释义

容积密度

英英释义

例句

1.In construction, knowing the bulk density of aggregates is crucial for mix design.

在建筑中，了解骨料的散装密度对混合设计至关重要。

2.The bulk density of the soil affects its ability to retain water.

土壤的散装密度影响其保水能力。

3.A lower bulk density usually indicates a higher porosity in the material.

较低的散装密度通常表示材料的孔隙率较高。

4.The bulk density of the powder can affect its flow characteristics during processing.

粉末的散装密度会影响其在加工过程中的流动特性。

5.To determine the bulk density of the material, we need to measure its mass and volume.

要确定材料的散装密度，我们需要测量其质量和体积。

作文

Understanding the concept of bulk density is crucial for various fields, including agriculture, construction, and environmental science. Bulk density refers to the mass of a substance per unit volume, which includes both the solid particles and the spaces between them. This measurement is particularly important when dealing with soils, as it can influence water retention, aeration, and root penetration. For instance, a soil with a high bulk density may indicate compaction, which can hinder plant growth by limiting the movement of air and water through the soil. On the other hand, low bulk density can suggest a loose structure that allows for better drainage and root development.In agriculture, understanding bulk density helps farmers manage their land more effectively. By measuring the bulk density of their soil, they can determine its health and productivity. For example, if a farmer finds that the bulk density of their soil has increased over time, they may need to implement practices such as crop rotation or reduced tillage to improve soil structure and reduce compaction. Conversely, if the bulk density is too low, it may indicate a need for organic matter addition to enhance soil fertility and stability.In construction, bulk density plays a significant role in material selection and structural integrity. Engineers must consider the bulk density of materials like concrete, gravel, and soil to ensure that structures are safe and stable. For example, a higher bulk density in concrete indicates a stronger material, which is essential for load-bearing applications. Additionally, understanding the bulk density of soil is vital for foundation design, as it affects the bearing capacity and settlement of structures.Environmental scientists also rely on bulk density measurements to assess soil contamination and remediation efforts. When pollutants are introduced into the soil, they can alter the bulk density, affecting how contaminants move through the soil profile. By monitoring changes in bulk density, scientists can evaluate the effectiveness of cleanup strategies and ensure that soils are returned to a healthy state.In summary, bulk density is a key parameter that influences many aspects of soil health, construction practices, and environmental management. Whether in agriculture, engineering, or environmental science, understanding and measuring bulk density can lead to better decision-making and improved outcomes. It is a fundamental concept that underscores the importance of soil properties and their implications for various applications. As we continue to face challenges related to soil degradation and urban development, the significance of bulk density will only grow, highlighting the need for ongoing research and education in this area.

理解体积密度的概念对于农业、建筑和环境科学等多个领域至关重要。体积密度是指单位体积内物质的质量，包括固体颗粒和它们之间的空隙。这一测量在处理土壤时尤为重要，因为它会影响水分保持、通气和根系渗透。例如，具有较高体积密度的土壤可能表明土壤被压实，这会通过限制空气和水在土壤中的运动来阻碍植物生长。另一方面，较低的体积密度可能表明松散的结构，有助于更好的排水和根系发育。在农业中，了解体积密度有助于农民更有效地管理土地。通过测量土壤的体积密度，他们可以确定土壤的健康状况和生产力。例如，如果农民发现其土壤的体积密度随着时间的推移而增加，他们可能需要实施作物轮作或减少耕作等措施，以改善土壤结构并减少压实。相反，如果体积密度过低，则可能表明需要添加有机物以增强土壤的肥力和稳定性。在建筑中，体积密度在材料选择和结构完整性方面发挥着重要作用。工程师必须考虑混凝土、砾石和土壤等材料的体积密度，以确保结构的安全和稳定。例如，混凝土的体积密度越高，表明材料越坚固，这对于承重应用至关重要。此外，了解土壤的体积密度对基础设计也至关重要，因为它影响结构的承载能力和沉降。环境科学家还依赖体积密度测量来评估土壤污染和修复工作。当污染物进入土壤时，它们可能会改变体积密度，影响污染物在土壤剖面中的移动。通过监测体积密度的变化，科学家可以评估清理策略的有效性，并确保土壤恢复到健康状态。总之，体积密度是影响土壤健康、建筑实践和环境管理等许多方面的关键参数。无论是在农业、工程还是环境科学中，理解和测量体积密度都能带来更好的决策和改善的结果。这是一个基本概念，强调了土壤特性的意义及其对各种应用的影响。随着我们继续面临与土壤退化和城市发展相关的挑战，体积密度的重要性只会增长，从而突显出在这一领域持续研究和教育的必要性。