fineness ratio

简明释义

长度排水体积比

英英释义

例句

1.In metallurgy, a higher fineness ratio often indicates a purer metal, which is crucial for high-performance applications.

在冶金学中，较高的纯度比通常表示金属更纯，这对高性能应用至关重要。

2.The fineness ratio of the fabric determines its softness and durability in clothing manufacturing.

织物的纯度比决定了其在服装生产中的柔软度和耐用性。

3.The jewelry designer emphasized the importance of the fineness ratio in determining the quality of the gold used in her pieces.

珠宝设计师强调了纯度比在决定她作品中黄金质量方面的重要性。

4.When assessing the quality of silver, jewelers often refer to the fineness ratio to ensure authenticity.

在评估银的质量时，珠宝商通常会参考纯度比以确保真实性。

5.A lower fineness ratio in the alloy might lead to increased brittleness in the final product.

合金中较低的纯度比可能导致最终产品的脆性增加。

作文

In the world of material science and engineering, the concept of fineness ratio plays a crucial role in determining the quality and usability of various materials. The fineness ratio is defined as the measure of the particle size distribution of a powdered material, particularly in terms of its ability to pass through a specified sieve size. This ratio is essential in industries such as construction, pharmaceuticals, and food processing, where the size of particles can significantly influence the properties and performance of the final product.Understanding the fineness ratio is vital for engineers and scientists because it directly affects the behavior of materials during mixing, compaction, and chemical reactions. For instance, in concrete production, a higher fineness ratio indicates smaller particles, which can lead to a denser and stronger final product. Conversely, if the fineness ratio is too low, the resulting concrete may be weaker and more prone to cracking.Moreover, in the pharmaceutical industry, the fineness ratio is critical for drug formulation. The bioavailability of a drug often depends on the size of its particles; smaller particles can dissolve more quickly, leading to faster absorption in the body. Therefore, controlling the fineness ratio during the manufacturing process is essential to ensure that patients receive effective dosages.In addition to its applications in construction and pharmaceuticals, the fineness ratio also has implications in food processing. For example, the texture and mouthfeel of powdered foods, such as flour or spices, can be influenced by their fineness ratio. A finer powder may blend better and enhance the sensory experience of the consumer, while coarser powders may not dissolve as easily in liquids, affecting the overall quality of the food product.To measure the fineness ratio, various methods are employed, including sieve analysis and laser diffraction techniques. Sieve analysis involves passing a sample through a series of sieves with different mesh sizes and calculating the percentage of material that passes through each sieve. This method provides a direct assessment of the particle size distribution and helps determine the fineness ratio accurately.Laser diffraction, on the other hand, uses light scattering to analyze the size of particles in a sample. This technique is particularly useful for materials that are difficult to assess using traditional sieve methods, providing rapid and precise measurements of the fineness ratio.In conclusion, the fineness ratio is a fundamental parameter that influences the behavior and performance of materials across various industries. By understanding and controlling this ratio, manufacturers can optimize their products, ensuring quality and efficacy in applications ranging from construction to pharmaceuticals and food processing. As technology advances, the methods for measuring and analyzing the fineness ratio will continue to improve, allowing for even greater precision in material science and engineering.

在材料科学和工程的世界中，fineness ratio（细度比）的概念在确定各种材料的质量和可用性方面起着至关重要的作用。fineness ratio被定义为粉状材料颗粒大小分布的测量，特别是在其通过特定筛孔大小的能力方面。这个比率在建筑、制药和食品加工等行业中至关重要，因为颗粒的大小可以显著影响最终产品的性质和性能。理解fineness ratio对工程师和科学家至关重要，因为它直接影响材料在混合、压实和化学反应过程中的行为。例如，在混凝土生产中，更高的fineness ratio表示更小的颗粒，这可能会导致最终产品更加密实和坚固。相反，如果fineness ratio过低，所产生的混凝土可能会较弱，更容易开裂。此外，在制药行业，fineness ratio对药物配方至关重要。药物的生物利用度往往依赖于其颗粒的大小；较小的颗粒可以更快溶解，从而导致在体内更快的吸收。因此，在制造过程中控制fineness ratio对于确保患者获得有效剂量至关重要。除了在建筑和制药中的应用外，fineness ratio在食品加工中也具有重要意义。例如，粉状食品（如面粉或香料）的质地和口感可以受到其fineness ratio的影响。较细的粉末可能更好地混合并增强消费者的感官体验，而较粗的粉末可能不易在液体中溶解，从而影响食品产品的整体质量。为了测量fineness ratio，采用了多种方法，包括筛分分析和激光衍射技术。筛分分析涉及将样品通过一系列不同网孔大小的筛子，并计算通过每个筛子的材料百分比。这种方法提供了颗粒大小分布的直接评估，并有助于准确确定fineness ratio。另一方面，激光衍射使用光散射来分析样品中颗粒的大小。这种技术对于那些使用传统筛分方法难以评估的材料特别有用，提供快速且精确的fineness ratio测量。总之，fineness ratio是一个基本参数，它影响各个行业材料的行为和性能。通过理解和控制这一比率，制造商可以优化他们的产品，确保在建筑、制药和食品加工等应用中的质量和有效性。随着技术的进步，测量和分析fineness ratio的方法将继续改进，从而在材料科学和工程领域实现更高的精度。