particle diameter

简明释义

颗粒直径

英英释义

例句

1.A smaller particle diameter (颗粒直径) can lead to a higher surface area for reactions.

较小的颗粒直径 (particle diameter) 可以导致更高的反应表面积。

2.We need to control the particle diameter (颗粒直径) for better product quality.

我们需要控制颗粒直径 (particle diameter) 以获得更好的产品质量。

3.The size of the filter is determined by the particle diameter (颗粒直径) it can trap.

过滤器的大小由它能够捕获的颗粒直径 (particle diameter) 决定。

4.The particle diameter (颗粒直径) affects the flow properties of the material.

颗粒直径 (particle diameter) 影响材料的流动特性。

5.In this experiment, we measured the particle diameter (颗粒直径) of various powders.

在这个实验中，我们测量了各种粉末的颗粒直径 (particle diameter)。

作文

The study of materials often involves understanding their physical properties, one of which is the particle diameter. The term particle diameter refers to the measurement of the size of individual particles within a material. This characteristic is crucial in various fields such as pharmaceuticals, materials science, and environmental studies. For instance, in the pharmaceutical industry, the particle diameter can significantly influence the dissolution rate of drugs in the body, affecting their bioavailability. Smaller particles typically dissolve faster, leading to quicker therapeutic effects. In materials science, the particle diameter is vital for determining the strength and durability of materials. For example, in concrete, the size of the aggregate particles can impact the overall strength of the structure. If the particle diameter is too large, it can create weak points in the concrete, while smaller particles can lead to a denser and more robust material. Environmental studies also rely on the understanding of particle diameter when analyzing pollutants. Fine particulate matter, often referred to as PM2.5, has a particle diameter of less than 2.5 micrometers. These tiny particles can penetrate deep into the lungs and even enter the bloodstream, posing significant health risks. Monitoring the particle diameter of airborne pollutants helps researchers assess air quality and its impact on public health. Moreover, the particle diameter plays a crucial role in processes such as filtration and separation. In industries that require the removal of contaminants from liquids or gases, understanding the particle diameter allows for the selection of appropriate filters. Filters are designed with specific pore sizes to capture particles of certain diameters, ensuring effective purification. In summary, the concept of particle diameter is fundamental across multiple disciplines. Its implications stretch from enhancing drug efficacy in medicine to improving construction materials and safeguarding environmental health. As technology advances, measuring and manipulating particle diameter will continue to be an essential aspect of research and development in various sectors. By understanding the importance of particle diameter, we can better appreciate the intricate details that contribute to the performance and safety of the materials and substances we encounter every day.

材料研究往往涉及理解其物理特性，其中之一就是粒子直径。术语粒子直径指的是对材料中单个粒子大小的测量。这一特性在制药、材料科学和环境研究等多个领域至关重要。例如，在制药行业，粒子直径会显著影响药物在体内的溶解速率，从而影响其生物利用度。较小的颗粒通常溶解得更快，导致更快的治疗效果。在材料科学中，粒子直径对于确定材料的强度和耐久性至关重要。例如，在混凝土中，骨料颗粒的大小会影响结构的整体强度。如果粒子直径过大，可能会在混凝土中产生弱点，而较小的颗粒则可以导致更密实和更坚固的材料。环境研究也依赖于对粒子直径的理解来分析污染物。细颗粒物质，通常称为PM2.5，其粒子直径小于2.5微米。这些微小的颗粒可以深入肺部，甚至进入血液，带来重大健康风险。监测空气中污染物的粒子直径有助于研究人员评估空气质量及其对公众健康的影响。此外，粒子直径在过滤和分离等过程中的作用也至关重要。在需要从液体或气体中去除污染物的行业中，理解粒子直径可以帮助选择合适的过滤器。过滤器是根据特定的孔径设计的，以捕获特定直径的颗粒，从而确保有效的净化。总之，粒子直径的概念在多个学科中是基础性的。它的影响从提高药物在医学中的疗效到改善建筑材料和保护环境健康。随着技术的进步，测量和操控粒子直径将继续成为各个领域研究和发展的重要方面。通过理解粒子直径的重要性，我们可以更好地欣赏那些有助于我们每天所接触的材料和物质的性能与安全的细节。