grain size

简明释义

粒度

英英释义

例句

1.A smaller grain size typically results in a finer texture in baked goods.

较小的粒径通常会导致烘焙食品的质地更加细腻。

2.The grain size of the rocks can help geologists determine the history of the area.

岩石的粒径可以帮助地质学家确定该地区的历史。

3.In metallurgy, the grain size can influence the strength of the metal.

在冶金中，晶粒尺寸可以影响金属的强度。

4.The grain size of the powder used in 3D printing is crucial for achieving a smooth finish.

在3D打印中使用的粉末的粒径对实现光滑表面至关重要。

5.The grain size of the sand affects how it compacts when wet.

沙子的粒径影响它在潮湿时的压实程度。

作文

The concept of grain size is fundamental in various fields, including geology, materials science, and even food science. In geology, grain size refers to the size of individual particles or crystals in a rock or sediment. This measurement can provide valuable insights into the history of the geological formation and the processes that shaped it. For example, larger grain sizes often indicate a more turbulent environment during deposition, while smaller grain sizes suggest calmer conditions. Understanding these characteristics helps geologists reconstruct past environments and predict future geological events.In materials science, grain size plays a critical role in determining the properties of metals and alloys. The strength and ductility of a material are significantly influenced by its grain size. Smaller grain sizes generally result in stronger materials due to the grain boundary strengthening mechanism. This principle is known as the Hall-Petch relationship, which states that as grain size decreases, yield strength increases. Engineers and scientists often manipulate grain size through processes such as heat treatment, forging, or alloying to achieve desired material properties for specific applications.Furthermore, in the realm of food science, grain size is an important factor in the texture and quality of food products. For instance, the grain size of flour can affect the texture of baked goods. Finer flours with smaller grain sizes tend to produce softer, more delicate pastries, while coarser flours can yield heartier breads. The culinary application of grain size extends beyond flour; it also applies to spices, where the grain size can influence the flavor release and overall sensory experience of a dish.In conclusion, the term grain size encapsulates a critical aspect across various disciplines. Whether in understanding the history of our planet, enhancing the properties of materials, or improving the quality of food, grain size serves as a pivotal parameter. By studying and manipulating grain size, researchers and practitioners can gain deeper insights and create better products that meet the needs of society. As we continue to explore the implications of grain size, it becomes increasingly clear that this seemingly simple concept holds profound significance in both natural and engineered systems.

“粒度”这一概念在地质学、材料科学甚至食品科学等多个领域中都至关重要。在地质学中，粒度指的是岩石或沉积物中单个颗粒或晶体的大小。这一测量可以提供关于地质形成历史和塑造过程的宝贵见解。例如，较大的粒度通常表明沉积期间环境更加动荡，而较小的粒度则暗示着更平静的条件。理解这些特征有助于地质学家重建过去的环境并预测未来的地质事件。在材料科学中，粒度在决定金属和合金的性质方面起着关键作用。材料的强度和延展性受到其粒度的显著影响。较小的粒度通常会导致材料更强，因为晶界强化机制的作用。这个原理被称为霍尔-佩奇关系，它指出随着粒度的减小，屈服强度增加。工程师和科学家常常通过热处理、锻造或合金化等过程来操控粒度，以实现特定应用所需的材料属性。此外，在食品科学领域，粒度是影响食品产品质地和质量的重要因素。例如，面粉的粒度可以影响烘焙食品的质地。细面粉的粒度较小，往往会产生更柔软、更精致的糕点，而粗面粉则可以制作更结实的面包。粒度的烹饪应用不仅限于面粉；它还适用于香料，其中粒度会影响风味释放和整体感官体验。总之，术语粒度涵盖了各个学科中的一个关键方面。无论是在理解我们星球的历史、增强材料的性能，还是改善食品的质量，粒度都是一个重要参数。通过研究和操控粒度，研究人员和从业者可以获得更深入的见解，并创造出满足社会需求的更好产品。随着我们继续探索粒度的意义，这一看似简单的概念在自然和工程系统中所蕴含的深远意义愈加明显。