power stroke

简明释义

工作行程

英英释义

例句

1.The timing of the power stroke is crucial for maximizing torque output.

对于最大化扭矩输出来说，动力冲程的时机至关重要。

2.The engine's efficiency is greatly improved by optimizing the length of each power stroke.

通过优化每个动力冲程的长度，发动机的效率得到了极大提高。

3.During the power stroke, the piston moves downwards, creating a vacuum that draws in air and fuel.

在动力冲程期间，活塞向下移动，产生一个真空，吸入空气和燃料。

4.In a four-stroke engine, the power stroke is the only phase that produces usable energy.

在四冲程发动机中，动力冲程是唯一产生可用能量的阶段。

5.Engineers analyze the power stroke to enhance the overall performance of the vehicle.

工程师分析动力冲程以提升车辆的整体性能。

作文

The concept of a power stroke is fundamental in various fields, particularly in mechanics and engineering. A power stroke refers to the phase in an engine cycle where energy is converted into useful work. This stage is crucial for the overall efficiency and performance of an engine. Understanding this process can help us appreciate how machines operate and the principles behind their design.In internal combustion engines, the power stroke occurs after the compression stroke. During this phase, the fuel-air mixture is ignited, resulting in a rapid expansion of gases. This explosion pushes the piston down, converting chemical energy into mechanical energy. The efficiency of this conversion greatly affects the engine's performance, making the power stroke a key focus for engineers striving to enhance engine designs.Moreover, the power stroke is not limited to combustion engines. In steam engines, for example, the power stroke occurs when steam pressure pushes the piston. Similarly, in hydraulic systems, the power stroke involves the movement of fluid that generates force. Understanding these different applications of the power stroke helps us see its relevance across various technologies.The significance of the power stroke extends beyond just machinery; it also plays a role in sports and physical activities. For instance, in weightlifting, the term can describe the explosive movement required to lift a heavy load. Athletes train specifically to optimize their power stroke, enhancing their strength and efficiency in lifting. This illustrates how the concept transcends mechanical systems and applies to human performance as well.Furthermore, advancements in technology have led to innovations aimed at improving the power stroke. Engineers are continually researching ways to increase the efficiency of this phase in engines, such as developing turbochargers and variable valve timing systems. These innovations ensure that more energy is harnessed during the power stroke, leading to better fuel economy and reduced emissions.In conclusion, the power stroke is a vital component in the functioning of engines and various mechanical systems. Its importance is evident in both engineering applications and athletic performance. By understanding the mechanics and implications of the power stroke, we gain insight into how energy is transformed and utilized in our world. As technology continues to evolve, the study of the power stroke will remain a critical area of focus for both engineers and athletes alike.

“动力冲程”这一概念在多个领域中都至关重要，特别是在机械和工程学中。“动力冲程”是指发动机循环中能量转化为有用工作的阶段。这个阶段对于发动机的整体效率和性能至关重要。理解这一过程可以帮助我们欣赏机器的运作方式以及其设计背后的原理。在内燃机中，“动力冲程”发生在压缩冲程之后。在这一阶段，燃料-空气混合物被点燃，导致气体迅速膨胀。这次爆炸推动活塞向下移动，将化学能转化为机械能。这一转化的效率极大地影响着发动机的性能，使得“动力冲程”成为工程师们努力提高发动机设计的关键焦点。此外，“动力冲程”并不仅限于燃烧发动机。例如，在蒸汽机中，“动力冲程”发生在蒸汽压力推动活塞时。类似地，在液压系统中，“动力冲程”涉及产生力量的流体运动。理解“动力冲程”的不同应用帮助我们看到它在各种技术中的相关性。“动力冲程”的重要性不仅限于机械；它在体育和身体活动中也扮演着角色。例如，在举重中，这个术语可以描述举起重物所需的爆发性动作。运动员专门训练以优化他们的“动力冲程”，增强他们在举重中的力量和效率。这表明这一概念超越了机械系统，也适用于人类表现。此外，技术的进步促使了旨在改善“动力冲程”的创新。工程师们不断研究提高这一阶段效率的方法，例如开发涡轮增压器和可变气门正时系统。这些创新确保在“动力冲程”期间能更有效地利用更多能量，从而提高燃油经济性并减少排放。总之，“动力冲程”是发动机和各种机械系统运作中的一个重要组成部分。其重要性在工程应用和运动表现中都显而易见。通过理解“动力冲程”的机制及其影响，我们能够深入了解能量如何在我们的世界中转化和利用。随着技术的不断发展，对“动力冲程”的研究将继续成为工程师和运动员关注的关键领域。