nominal size

简明释义

标称尺寸

英英释义

例句

1.The pipe has a nominal size of 2 inches, which refers to its internal diameter.

这根管道的名义尺寸为2英寸，指的是其内部直径。

2.The nominal size of the screws is important for ensuring compatibility with the materials being used.

螺丝的名义尺寸对于确保与所用材料的兼容性非常重要。

3.In this plumbing system, we use fittings that match the nominal size of the pipes.

在这个管道系统中，我们使用与管道的名义尺寸相匹配的配件。

4.The nominal size of the lumber is often different from its actual dimensions.

木材的名义尺寸通常与其实际尺寸不同。

5.When ordering steel beams, ensure you specify the nominal size required for your project.

在订购钢梁时，请确保指定您项目所需的名义尺寸。

作文

Understanding the concept of nominal size is crucial in various fields, including manufacturing, construction, and engineering. The term refers to the designated size of an object or material, which may not reflect its actual dimensions. For instance, in the world of plumbing, a pipe labeled as '2 inches' in nominal size may have an actual diameter of about 2.375 inches. This discrepancy arises because the nominal size is often based on historical standards or conventions that do not account for the precise measurements of the product. In construction, the nominal size is used to describe lumber dimensions. A piece of wood marketed as a '2x4' actually measures 1.5 inches by 3.5 inches after it has been planed and finished. This difference can lead to confusion among builders and DIY enthusiasts who might expect the board to be the size it is labeled. Therefore, understanding nominal size helps avoid errors in planning and executing projects where precise measurements are critical.The use of nominal size extends beyond physical dimensions; it also plays a role in various industries, such as textiles and electronics. In textiles, fabric may be sold by the yard with a nominal size that does not account for shrinkage or stretch during washing or usage. Similarly, in electronics, components may have a nominal size that indicates their intended fit but can vary slightly due to manufacturing tolerances.Moreover, the understanding of nominal size is essential for compliance with industry standards and regulations. Many industries have specific guidelines that dictate how products should be labeled and what measurements should be used. Failing to adhere to these standards can result in legal issues, safety hazards, and financial losses. Therefore, professionals in these fields must be well-versed in the implications of nominal size to ensure they meet all necessary requirements.In conclusion, the term nominal size serves as a reminder that the name does not always match the reality. Whether in construction, manufacturing, or any other field, recognizing the difference between nominal size and actual dimensions is vital for successful project execution and product development. As industries continue to evolve, the importance of understanding nominal size will only grow, making it an essential concept for anyone involved in technical fields. By acknowledging the significance of nominal size, we can enhance our accuracy and efficiency in various applications, ultimately leading to better outcomes in our work.

理解名义尺寸的概念在制造、建筑和工程等多个领域至关重要。该术语指的是物体或材料的指定尺寸，这可能与其实际尺寸不符。例如，在管道行业中，标记为“2英寸”的管道，其实际直径约为2.375英寸。这种差异产生的原因是，名义尺寸通常基于历史标准或惯例，而不考虑产品的精确测量。在建筑中，名义尺寸用于描述木材尺寸。一块标记为“2x4”的木材，在经过刨光和修整后，实际尺寸为1.5英寸乘以3.5英寸。这种差异可能会导致建筑商和DIY爱好者感到困惑，他们可能期望木板的尺寸与其标签一致。因此，理解名义尺寸有助于避免在规划和执行项目时出现错误，尤其是在精确测量至关重要的情况下。名义尺寸的使用超出了物理尺寸，它还在纺织品和电子等各种行业中发挥着作用。在纺织品行业，面料可能按码出售，其名义尺寸并未考虑洗涤或使用过程中的缩水或拉伸。同样，在电子产品中，组件可能具有一个名义尺寸，表示其预期的适合度，但由于制造公差而略有不同。此外，理解名义尺寸对于遵守行业标准和法规至关重要。许多行业都有特定的指导方针，规定了产品应如何标记以及应使用什么测量标准。不遵守这些标准可能导致法律问题、安全隐患和财务损失。因此，这些领域的专业人士必须熟悉名义尺寸的含义，以确保他们满足所有必要的要求。总之，术语名义尺寸提醒我们，名称并不总是与现实相符。无论是在建筑、制造还是其他任何领域，认识到名义尺寸与实际尺寸之间的区别，对于成功执行项目和产品开发至关重要。随着行业的不断发展，理解名义尺寸的重要性只会增加，使其成为任何参与技术领域的人的基本概念。通过承认名义尺寸的重要性，我们可以提高各种应用中的准确性和效率，最终在我们的工作中获得更好的结果。