grain size category

简明释义

粒度等级

英英释义

例句

1.Researchers often use the grain size category 颗粒大小类别 to analyze the distribution of materials in a sample.

研究人员通常使用颗粒大小类别 grain size category 来分析样本中材料的分布。

2.The grain size category 颗粒大小类别 is essential for understanding the properties of soil.

了解土壤特性时，颗粒大小类别 grain size category 是至关重要的。

3.In geology, the grain size category 颗粒大小类别 helps classify different types of sediment.

在地质学中，颗粒大小类别 grain size category 有助于对不同类型的沉积物进行分类。

4.When studying rocks, geologists refer to the grain size category 颗粒大小类别 to determine their formation history.

在研究岩石时，地质学家会参考颗粒大小类别 grain size category 来确定其形成历史。

5.The grain size category 颗粒大小类别 affects the permeability of sediments in hydrogeology.

在水文地质学中，颗粒大小类别 grain size category 会影响沉积物的渗透性。

作文

The study of materials, particularly in the field of geology and materials science, often involves analyzing the characteristics of various substances. One critical aspect of this analysis is understanding the grain size category, which refers to the classification of particles based on their size. This classification plays a vital role in determining the physical properties of materials, influencing their strength, durability, and behavior under different conditions. For instance, in sedimentology, the grain size category helps geologists understand the depositional environment of sedimentary rocks. The size of grains can indicate the energy of the transporting medium; larger grains typically suggest a high-energy environment, while smaller grains are indicative of lower energy conditions.In addition to geology, the grain size category is significant in materials science, particularly in metallurgy and the manufacturing of composites. The mechanical properties of metals, such as yield strength and ductility, can be significantly affected by the grain size of the material. Smaller grains often lead to stronger materials due to the grain boundary strengthening mechanism, where the boundaries between grains impede the movement of dislocations. Therefore, controlling the grain size category during processing can enhance the performance of engineering materials.Moreover, the grain size category also has implications in the food industry, particularly in the milling and processing of grains. The size of flour particles can affect the texture and quality of baked goods. For example, finer flour results in softer textures, while coarser flour can lead to denser products. Understanding the grain size category in this context allows manufacturers to tailor their products to meet specific consumer preferences and baking requirements.In environmental science, the grain size category is crucial for understanding soil composition and its impact on water retention, drainage, and nutrient availability. Different soil types, classified by their grain size, dictate the types of vegetation that can thrive in a particular area. Sandy soils, characterized by larger grain sizes, drain quickly and may require more frequent watering, while clay soils, with smaller grains, retain moisture but can lead to poor drainage.In conclusion, the grain size category is a fundamental concept that transcends various fields, from geology to materials science and even food production. By understanding and categorizing materials based on their grain size, scientists and engineers can make informed decisions that enhance the performance and quality of their products. As research continues to advance, the importance of accurately determining the grain size category will only grow, paving the way for innovations across multiple disciplines.

材料研究，特别是在地质学和材料科学领域，通常涉及分析各种物质的特性。其中一个关键方面是理解粒度类别，它指的是根据粒子的大小进行分类。这种分类在确定材料的物理特性方面发挥着至关重要的作用，影响其强度、耐久性以及在不同条件下的表现。例如，在沉积学中，粒度类别帮助地质学家理解沉积岩的沉积环境。颗粒的大小可以指示运输介质的能量；较大的颗粒通常表明高能环境，而较小的颗粒则表明低能条件。除了地质学，粒度类别在材料科学中也很重要，特别是在冶金和复合材料的制造中。金属的机械性能，如屈服强度和延展性，可能会受到材料粒度的显著影响。较小的颗粒往往导致更强的材料，这是由于晶界强化机制，即晶粒之间的边界阻碍位错的运动。因此，在加工过程中控制粒度类别可以提高工程材料的性能。此外，粒度类别在食品工业中也具有重要意义，特别是在谷物的磨制和加工中。面粉颗粒的大小可以影响烘焙食品的质地和质量。例如，细面粉会产生更柔软的质地，而粗面粉则可能导致更致密的产品。在这种情况下理解粒度类别使制造商能够根据特定的消费者偏好和烘焙要求来调整其产品。在环境科学中，粒度类别对于理解土壤成分及其对水分保持、排水和养分可用性的影响至关重要。根据粒度分类的不同土壤类型决定了特定区域内能够生长的植物种类。以较大颗粒为特征的沙土排水迅速，可能需要更频繁的浇水，而粘土则由于颗粒较小而保持水分，但可能导致排水不良。总之，粒度类别是一个基本概念，跨越多个领域，从地质学到材料科学甚至食品生产。通过理解和根据粒度对材料进行分类，科学家和工程师可以做出明智的决策，从而提高产品的性能和质量。随着研究的不断推进，准确确定粒度类别的重要性只会增加，为多个学科的创新铺平道路。