major diameter

简明释义

大直径外径

英英释义

例句

1.In the design of gears, the major diameter is crucial for proper meshing.

在齿轮设计中，主要直径对于正确啮合至关重要。

2.The engineer measured the major diameter of the pipe to ensure it fits the specifications.

工程师测量了管道的主要直径以确保其符合规格。

3.Understanding the major diameter helps in selecting the right drill bit.

了解主要直径有助于选择合适的钻头。

4.The manufacturer provides detailed specifications, including the major diameter of each component.

制造商提供详细的规格，包括每个组件的主要直径。

5.The major diameter of the bolt was verified before assembly.

在组装之前，螺栓的主要直径被验证。

作文

In the realm of engineering and manufacturing, precision is paramount. One of the critical measurements that engineers often deal with is the major diameter, which refers to the largest diameter of a cylindrical object or the outermost edge of a circular cross-section. Understanding this measurement is essential for various applications, including mechanical design, quality control, and assembly processes.The major diameter plays a vital role in ensuring that components fit together correctly. For instance, in the production of screws and bolts, the major diameter determines how these fasteners will interact with corresponding nuts or holes. If the major diameter is not accurately measured, it can lead to issues such as improper fit, increased wear and tear, or even failure of the assembly under stress.Moreover, the major diameter is crucial in the context of tolerances. Tolerances are the allowable variations in a dimension, and they are critical for ensuring that parts manufactured in different batches can still fit together seamlessly. When engineers specify tolerances for the major diameter, they are essentially defining the acceptable range within which the actual diameter can vary. This ensures that even if there are slight discrepancies in manufacturing, the parts will still function as intended.In addition to its importance in mechanical components, the major diameter also finds relevance in other fields such as fluid dynamics and aerodynamics. For example, in the design of pipes and ducts, the major diameter affects the flow rate of fluids. A larger major diameter allows for a higher volume of fluid to pass through, which can be critical in applications like water supply systems or HVAC installations. Engineers must carefully calculate the major diameter to ensure optimal performance and efficiency.Furthermore, the major diameter is not just a static measurement; it can also be influenced by factors such as temperature, material properties, and manufacturing processes. For instance, metals expand when heated, which can alter the major diameter of a component. Understanding these factors is essential for engineers, as they must account for potential changes in dimensions during operation.In conclusion, the major diameter is a fundamental concept in engineering that encompasses various aspects of design, manufacturing, and functionality. Its significance cannot be overstated, as it directly impacts the performance and reliability of mechanical systems. By mastering the understanding of the major diameter, engineers can ensure that their designs are not only effective but also efficient, leading to better products and systems overall. As technology continues to advance, the importance of precise measurements like the major diameter will only grow, underscoring the need for ongoing education and expertise in this area.

在工程和制造领域，精确性至关重要。工程师经常处理的一个关键测量是主要直径，它指的是圆柱形物体的最大直径或圆形横截面的最外缘。理解这个测量对于各种应用至关重要，包括机械设计、质量控制和装配过程。主要直径在确保组件正确配合方面发挥着至关重要的作用。例如，在螺丝和螺栓的生产中，主要直径决定了这些紧固件如何与相应的螺母或孔相互作用。如果主要直径测量不准确，可能会导致配合不当、磨损增加，甚至在压力下组件失效。此外，主要直径在公差的上下文中也至关重要。公差是尺寸中允许的变化，它们对确保不同批次制造的零件仍然能无缝配合至关重要。当工程师为主要直径指定公差时，他们实际上是在定义实际直径可以变化的可接受范围。这确保了即使在制造中存在轻微的差异，零件仍然能够按预期功能运作。除了在机械组件中的重要性外，主要直径在流体动力学和空气动力学等其他领域也具有相关性。例如，在管道和风管的设计中，主要直径影响流体的流动速率。更大的主要直径允许更多的流体通过，这在水供应系统或暖通空调安装等应用中可能至关重要。工程师必须仔细计算主要直径以确保最佳性能和效率。此外，主要直径不仅仅是一个静态测量；它还可能受到温度、材料特性和制造过程等因素的影响。例如，金属在加热时会膨胀，这可能会改变组件的主要直径。理解这些因素对工程师至关重要，因为他们必须考虑在操作过程中尺寸可能发生的变化。总之，主要直径是工程中的一个基本概念，涵盖了设计、制造和功能的各个方面。其重要性不容小觑，因为它直接影响机械系统的性能和可靠性。通过掌握对主要直径的理解，工程师可以确保他们的设计不仅有效，而且高效，从而整体上产生更好的产品和系统。随着技术的不断进步，像主要直径这样的精确测量的重要性只会增长，这凸显了在这一领域持续教育和专业知识的必要性。