"Brevetting" 在英文中通常指的是疲劳断裂，即材料在承受反复应力或应变作用后，由于材料内部疲劳裂纹的扩展而导致材料断裂的现象。在工程和机械领域，brevetting通常用于描述金属材料在承受反复应力或应变作用后，其强度和耐久性有所降低的现象。
以下是一篇关于brevetting的英文范文，供您参考：
Title: Brevetting: An Important Factor in Material Durability
Brevetting, also known as fatigue crack propagation, refers to the process of material failure caused by repeated stress or strain. It is a common phenomenon in engineering and mechanical systems, and has a significant impact on the durability and lifespan of materials and components.
Brevetting occurs when materials are subjected to repeated loads or vibrations, causing micro-cracks to form within the material. These micro-cracks can grow and expand over time, leading to catastrophic failure of the material or component. Therefore, brevetting is a critical factor to consider when designing and operating mechanical systems, as it can have a significant impact on system performance and reliability.
In order to minimize brevetting, engineers must ensure that materials and components are designed and manufactured to withstand repeated loads and vibrations. This may involve using high-quality materials with superior strength and fatigue resistance, as well as optimizing component geometry and assembly methods. Additionally, proper maintenance and inspection procedures must be implemented to detect and address any potential brevetting issues before they become significant.
By understanding brevetting and taking appropriate measures to minimize its impact, engineers can improve the durability and reliability of their systems, resulting in greater operational efficiency and cost savings.
brevetting是一个英语单词，意思是“疲劳断裂”。
以下是一篇关于brevetting的英文范文：
Brevetting is a common phenomenon in engineering and manufacturing processes, especially in high-speed production lines. It refers to the phenomenon of material fatigue and fracture caused by repeated stress and strain. Brevetting is often caused by improper design or production methods, and can lead to serious safety hazards and production losses. Therefore, it is necessary to pay attention to the prevention and control of brevetting to ensure the safety and efficiency of production.
“brevetting”的意思是使获得委任或资格；使获得短期增加工龄。
在英文范文中的最新变化暂时无法提供，建议查阅最新的英语文献或咨询英语专业人士。