bulk density

简明释义

堆积密度

英英释义

例句

1.The bulk density of a powder can influence its flowability in industrial processes.

粉末的体积密度会影响其在工业过程中的流动性。

2.A higher bulk density usually indicates a more compacted material.

较高的体积密度通常表示材料更为紧实。

3.In construction, knowing the bulk density of aggregates is essential for mix design.

在建筑中，了解骨料的体积密度对混合设计至关重要。

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

土壤的体积密度影响其保持水分的能力。

5.To calculate the bulk density, you need to measure the mass and volume of the material.

要计算体积密度，需要测量材料的质量和体积。

作文

Understanding the concept of bulk density is crucial in various fields such as agriculture, construction, and environmental science. Bulk density refers to the mass of a material per unit volume, including the space between particles. This measurement is important because it influences how materials behave in different conditions. For instance, in agriculture, bulk density can affect soil health and crop yield. Soils with high bulk density may indicate compaction, which restricts root growth and water infiltration, leading to poor plant development. Conversely, soils with low bulk density are often more porous, allowing for better aeration and drainage, which can enhance plant growth.In construction, understanding bulk density is essential when selecting materials for building projects. Different materials have varying bulk densities, which can affect the overall weight and stability of structures. For example, using lightweight materials with lower bulk density can reduce the load on foundations, making them suitable for certain types of buildings. Additionally, knowing the bulk density of concrete or other construction materials helps engineers calculate the necessary quantity of materials needed for a project, ensuring efficiency and cost-effectiveness.Environmental scientists also pay close attention to bulk density when assessing soil contamination and land use. A change in bulk density can indicate changes in soil structure due to pollution or erosion. Monitoring these changes helps in developing strategies for soil remediation and sustainable land management practices. For instance, if a contaminated site shows an increase in bulk density, it may suggest compaction from heavy machinery during cleanup efforts, which could further impact soil health.To measure bulk density, one typically uses a simple formula: the mass of the dry soil divided by its volume. This can be done using a core sampler that extracts a known volume of soil, which is then dried and weighed. The resulting value provides insight into the soil's physical properties and its ability to support plant life or construction loads.In conclusion, bulk density is a fundamental concept that impacts various industries and fields of study. Whether it’s improving agricultural practices, ensuring safe construction, or monitoring environmental health, understanding bulk density allows professionals to make informed decisions that lead to better outcomes. As our understanding of soil and material properties continues to evolve, the importance of bulk density will remain a key focus in research and practical applications, highlighting the interconnectedness of natural and built environments.

理解bulk density的概念在农业、建筑和环境科学等多个领域中至关重要。bulk density指的是材料每单位体积的质量，包括颗粒之间的空间。这一测量很重要，因为它影响材料在不同条件下的表现。例如，在农业中，bulk density可以影响土壤健康和作物产量。高bulk density的土壤可能表明压实，这会限制根系生长和水分渗透，导致植物发育不良。相反，低bulk density的土壤通常更为多孔，允许更好的通气和排水，从而促进植物生长。在建筑中，理解bulk density对于选择建筑项目的材料至关重要。不同材料具有不同的bulk density，这可能影响结构的整体重量和稳定性。例如，使用低bulk density的轻质材料可以减轻基础的负担，使其适合某些类型的建筑。此外，了解混凝土或其他建筑材料的bulk density有助于工程师计算项目所需材料的数量，确保效率和成本效益。环境科学家在评估土壤污染和土地使用时也非常关注bulk density。bulk density的变化可能表明由于污染或侵蚀导致的土壤结构变化。监测这些变化有助于制定土壤修复和可持续土地管理实践的策略。例如，如果一个受污染的地点显示出bulk density的增加，这可能表明在清理过程中重型机械造成了压实，这可能进一步影响土壤健康。要测量bulk density，通常使用一个简单的公式：干土的质量除以其体积。这可以通过使用一个核心取样器来完成，该取样器提取已知体积的土壤，然后将其干燥并称重。得到的值提供了对土壤物理特性及其支持植物生命或建筑负荷能力的洞察。总之，bulk density是一个基本概念，影响着各个行业和研究领域。无论是改善农业实践、确保安全建筑，还是监测环境健康，理解bulk density使专业人士能够做出明智的决策，从而带来更好的结果。随着我们对土壤和材料特性的理解不断发展，bulk density的重要性将继续成为研究和实际应用的关键焦点，突显自然环境和人造环境之间的相互联系。