nominal size

简明释义

公称尺寸

英英释义

例句

1.For HVAC systems, the nominal size of the ducts should match the airflow requirements.

对于暖通空调系统，管道的名义尺寸应与气流要求相匹配。

2.When ordering lumber, it's important to know the nominal size versus the actual dimensions.

在订购木材时，了解名义尺寸与实际尺寸之间的区别是很重要的。

3.In plumbing, the nominal size of fittings can affect how they connect with pipes.

在管道中，配件的名义尺寸可能会影响它们与管道的连接方式。

4.The pipe has a nominal size of 2 inches, which means its actual diameter is slightly less than that.

这根管道的名义尺寸为2英寸，这意味着它的实际直径略小于此。

5.The nominal size of the electrical conduit is often different from its physical measurement.

电缆管的名义尺寸通常与其物理测量值不同。

作文

In the world of manufacturing and construction, precision is key. One term that often comes up in these fields is nominal size, which refers to the designated size of a material or object. This designation is not always the actual size, but rather a standardized measurement used for identification and communication purposes. Understanding the concept of nominal size is crucial for professionals in various industries, as it affects everything from design to production and installation.To illustrate this, consider a common example in the plumbing industry. Pipes are often sold with a nominal size that indicates their diameter. For instance, a pipe labeled as '2 inches' does not actually measure 2 inches in diameter; instead, its nominal size is a convenient way to categorize it within a range of sizes. The actual diameter may be slightly less than 2 inches due to manufacturing tolerances and standards. This can lead to confusion if one is not aware of the difference between the nominal size and the real dimensions.Similarly, in the world of lumber, wood is often sold based on its nominal size. A piece of wood labeled as '2x4' is not actually 2 inches by 4 inches; it is typically smaller due to the drying and planing processes that occur after the wood is cut. The nominal size serves as a marketing term that helps customers understand the category of the product they are purchasing, while the actual dimensions are provided for accurate measurements during construction.The use of nominal size also extends to other materials, such as concrete blocks and tiles. In these cases, the nominal size helps to simplify the ordering process and ensures consistency across products. When architects and builders specify materials, they often rely on these nominal sizes to communicate effectively with suppliers and subcontractors.However, while nominal size provides a useful shorthand, it is essential for anyone working with these materials to be aware of the actual dimensions. Misunderstandings can lead to significant issues on the job site, including misaligned structures or insufficient materials. Therefore, it is advisable to always check the specifications and verify the actual sizes before commencing any project.In conclusion, the term nominal size plays a vital role in various industries, particularly in construction and manufacturing. It allows for easier communication and categorization of materials, but it is important to remember that the nominal size may not reflect the true dimensions of a product. By understanding this concept, professionals can avoid potential pitfalls and ensure that their projects are completed accurately and efficiently. Ultimately, a clear grasp of nominal size leads to better planning, execution, and outcomes in any construction or manufacturing endeavor.

在制造和建筑的世界中，精确性是关键。一个经常出现在这些领域的术语是名义尺寸，它指的是材料或物体的指定尺寸。这一标称并不总是实际尺寸，而是一种用于识别和沟通目的的标准化测量。理解名义尺寸的概念对各行各业的专业人士至关重要，因为它影响着从设计到生产和安装的方方面面。为了说明这一点，考虑一个在管道行业中的常见例子。管道通常以名义尺寸出售，表示其直径。例如，标记为“2英寸”的管道实际上并不测量2英寸的直径；相反，它的名义尺寸是一种方便的方式，用于将其归类于一系列尺寸之中。由于制造公差和标准，实际直径可能略小于2英寸。如果没有意识到名义尺寸与真实尺寸之间的区别，这可能会导致混淆。类似地，在木材行业，木材通常基于其名义尺寸出售。一块标记为“2x4”的木材实际上并不是2英寸乘4英寸；由于木材在切割后经过干燥和刨平过程，通常会小一些。名义尺寸作为一种营销术语，帮助客户理解他们所购买产品的类别，而实际尺寸则用于在建筑过程中进行准确测量。名义尺寸的使用还扩展到其他材料，例如混凝土块和瓷砖。在这些情况下，名义尺寸有助于简化订购过程，并确保产品之间的一致性。当建筑师和建筑工人指定材料时，他们通常依赖这些名义尺寸与供应商和分包商进行有效沟通。然而，虽然名义尺寸提供了一个有用的简写，但对于任何与这些材料打交道的人来说，了解实际尺寸至关重要。误解可能导致工地上出现重大问题，包括结构不对齐或材料不足。因此，建议在开始任何项目之前，总是检查规格并验证实际尺寸。总之，术语名义尺寸在各行各业中发挥着重要作用，尤其是在建筑和制造中。它使材料的沟通和分类变得更容易，但重要的是要记住，名义尺寸可能并不反映产品的真实尺寸。通过理解这一概念，专业人士可以避免潜在的陷阱，并确保他们的项目能够准确、高效地完成。最终，对名义尺寸的清晰掌握将有助于任何建筑或制造工作中的更好规划、执行和结果。