nominal diameter

简明释义

公称直径

英英释义

例句

1.When ordering steel tubes, ensure you provide the correct nominal diameter to avoid delays.

在订购钢管时，请确保提供正确的公称直径以避免延误。

2.The pipe has a nominal diameter of 50 mm, which means it is designed to fit standard fittings.

这根管道的公称直径为50毫米，这意味着它设计为适合标准配件。

3.In plumbing, the nominal diameter is often used to specify the size of pipes.

在管道工程中，公称直径通常用于指定管道的尺寸。

4.The nominal diameter of this bolt is crucial for determining the correct nut size.

这个螺栓的公称直径对确定正确的螺母尺寸至关重要。

5.Manufacturers often list the nominal diameter in their product specifications for clarity.

制造商通常在其产品规格中列出公称直径以便于理解。

作文

Understanding the concept of nominal diameter is essential in various fields, particularly in engineering and manufacturing. The term refers to a standardized measurement used to describe the size of pipes, tubes, and other cylindrical objects. While it may sound straightforward, the nominal diameter does not always reflect the actual physical dimensions of an object. Instead, it serves as a reference point for manufacturers and engineers to communicate effectively about sizes and specifications.In practical terms, the nominal diameter is often rounded to the nearest whole number, which can lead to some confusion. For instance, a pipe with a nominal diameter of 2 inches may not actually measure exactly 2 inches in diameter. This discrepancy arises because the nominal diameter is intended to provide a general idea of the size rather than an exact measurement. Understanding this distinction is crucial when selecting materials for construction or plumbing projects.The use of nominal diameter is prevalent in the plumbing industry. When specifying pipes, contractors will often refer to the nominal diameter to ensure that they are using the correct size for their systems. This standardization simplifies the procurement process, allowing suppliers to stock items based on common nominal diameters. However, it is important for professionals to be aware of the actual dimensions, such as the inner and outer diameters, to ensure compatibility with fittings and other components.In addition to plumbing, the concept of nominal diameter extends to various engineering applications. For example, in mechanical engineering, the nominal diameter of bolts and screws is specified to ensure proper fit and function within assemblies. Engineers must also consider factors like tolerances and material properties when designing components that rely on nominal diameter measurements.Another important aspect of nominal diameter is its role in the context of international standards. Different countries may have varying definitions and applications of nominal diameter, leading to potential misunderstandings in global trade. For instance, the American National Standards Institute (ANSI) and the International Organization for Standardization (ISO) may have different specifications for the same nominal diameter. Therefore, it is vital for engineers and manufacturers to be familiar with these standards to avoid costly mistakes.In conclusion, the term nominal diameter plays a significant role in engineering, manufacturing, and construction. While it serves as a useful reference for size, understanding the nuances behind the term is crucial for accurate application. Professionals in these fields must recognize that the nominal diameter may not always correspond to actual measurements, and they should always verify the specific dimensions required for their projects. By doing so, they can ensure that their work adheres to industry standards and achieves the desired outcomes. Ultimately, a thorough comprehension of nominal diameter will contribute to better design, improved safety, and enhanced efficiency in various applications.

理解名义直径的概念在各个领域，尤其是工程和制造中至关重要。这个术语指的是用于描述管道、管子和其他圆柱形物体大小的标准化测量。虽然听起来很简单，但名义直径并不总是反映物体的实际物理尺寸。相反，它作为一个参考点，供制造商和工程师有效地沟通尺寸和规格。在实际应用中，名义直径通常会四舍五入到最接近的整数，这可能会导致一些混淆。例如，一根标称直径为2英寸的管道，实际上可能并不完全是2英寸的直径。这种差异产生的原因是，名义直径旨在提供对大小的一般了解，而不是确切的测量。当选择建筑或管道项目的材料时，理解这一区别至关重要。名义直径的使用在管道行业中非常普遍。在指定管道时，承包商通常会提到名义直径，以确保他们正在使用正确的尺寸来满足其系统的需求。这种标准化简化了采购过程，使供应商能够根据常见的名义直径来备货。然而，专业人员必须意识到实际尺寸，例如内外直径，以确保与配件和其他组件的兼容性。除了管道，名义直径的概念还扩展到各种工程应用中。例如，在机械工程中，螺栓和螺钉的名义直径被指定，以确保在组件中的适当配合和功能。工程师在设计依赖于名义直径测量的组件时，还必须考虑公差和材料特性等因素。名义直径的另一个重要方面是它在国际标准中的作用。不同国家对名义直径的定义和应用可能有所不同，这可能导致全球贸易中的误解。例如，美国国家标准协会（ANSI）和国际标准化组织（ISO）可能对同一名义直径有不同的规格。因此，工程师和制造商熟悉这些标准至关重要，以避免成本高昂的错误。总之，名义直径这一术语在工程、制造和建筑中发挥着重要作用。虽然它作为尺寸的有用参考，但理解该术语背后的细微差别对于准确应用至关重要。这些领域的专业人士必须认识到，名义直径并不总是与实际测量相对应，他们应始终验证项目所需的具体尺寸。通过这样做，他们可以确保自己的工作遵循行业标准，并实现预期的结果。最终，对名义直径的透彻理解将有助于在各种应用中更好的设计、提高安全性和增强效率。