particle size distribution

简明释义

粒径分布

英英释义

例句

1.The particle size distribution in this sample indicates a high level of contamination.

该样本中的颗粒大小分布表明污染水平较高。

2.Understanding the particle size distribution helps in optimizing the manufacturing process.

理解颗粒大小分布有助于优化制造过程。

3.In pharmaceuticals, the particle size distribution is critical for drug absorption.

在制药行业，颗粒大小分布对药物吸收至关重要。

4.The particle size distribution of the soil affects its drainage and aeration properties.

土壤的颗粒大小分布影响其排水和通气特性。

5.We need to analyze the particle size distribution to improve the quality of our cement.

我们需要分析颗粒大小分布以提高水泥的质量。

作文

In the field of materials science and engineering, understanding the concept of particle size distribution is crucial for various applications. Particle size distribution refers to the range of sizes of particles within a given sample, which can significantly influence the physical and chemical properties of materials. For instance, in pharmaceuticals, the particle size distribution of a drug can affect its solubility, bioavailability, and ultimately its effectiveness. Smaller particles tend to dissolve faster, leading to quicker absorption in the body, while larger particles may release the drug more slowly. Therefore, controlling the particle size distribution during the manufacturing process is essential for optimizing drug formulations.Moreover, in the field of environmental science, the particle size distribution of pollutants in the air or water can provide valuable information about their potential impact on health and the environment. Fine particles, often referred to as PM2.5, can penetrate deep into the lungs and enter the bloodstream, posing serious health risks. Understanding the particle size distribution of these pollutants allows researchers and policymakers to develop effective strategies for air quality management and pollution control.In industrial processes such as cement production or mineral processing, the particle size distribution can affect the efficiency of operations. For example, in cement manufacturing, a well-controlled particle size distribution ensures optimal hydration of the cement particles, leading to better strength and durability of the final product. Similarly, in mineral processing, the particle size distribution of ores can influence the recovery rates of valuable minerals during separation processes.To accurately measure and analyze particle size distribution, various techniques are employed, including laser diffraction, dynamic light scattering, and sieve analysis. Each method has its advantages and limitations, depending on the size range and nature of the particles being studied. For instance, laser diffraction is suitable for a wide range of sizes, while sieve analysis is more effective for larger particles.In conclusion, the concept of particle size distribution is fundamental across multiple disciplines, impacting everything from drug formulation to environmental health and industrial processes. A thorough understanding of particle size distribution enables scientists and engineers to design better products and processes, ultimately leading to improved quality of life and environmental sustainability. As research continues to advance, the importance of accurately measuring and controlling particle size distribution will only become more pronounced, highlighting the need for ongoing innovation in this area.

在材料科学和工程领域，理解粒径分布的概念对于各种应用至关重要。粒径分布是指给定样品中颗粒大小的范围，这会显著影响材料的物理和化学性质。例如，在制药行业，药物的粒径分布可以影响其溶解度、生物利用度以及最终的有效性。较小的颗粒往往溶解得更快，从而导致在体内更快的吸收，而较大的颗粒可能释放药物的速度较慢。因此，在制造过程中控制粒径分布对于优化药物配方至关重要。此外，在环境科学领域，空气或水中污染物的粒径分布可以提供有关其对健康和环境潜在影响的宝贵信息。细颗粒，通常称为PM2.5，能够深入肺部并进入血液，带来严重的健康风险。理解这些污染物的粒径分布使研究人员和政策制定者能够制定有效的空气质量管理和污染控制策略。在水泥生产或矿物加工等工业过程中，粒径分布可以影响操作的效率。例如，在水泥制造中，良好控制的粒径分布可确保水泥颗粒的最佳水化，从而提高最终产品的强度和耐久性。同样，在矿物加工中，矿石的粒径分布可以影响在分离过程中有价值矿物的回收率。为了准确测量和分析粒径分布，采用了各种技术，包括激光衍射、动态光散射和筛分分析。每种方法都有其优缺点，具体取决于所研究颗粒的大小范围和性质。例如，激光衍射适用于广泛的尺寸范围，而筛分分析则对较大颗粒更有效。总之，粒径分布的概念在多个学科中是基础性的，影响从药物配方到环境健康和工业过程的一切。对粒径分布的透彻理解使科学家和工程师能够设计更好的产品和工艺，最终提高生活质量和环境可持续性。随着研究的不断进展，准确测量和控制粒径分布的重要性将愈加突出，强调了在这一领域持续创新的必要性。