power stroke

简明释义

作功冲程

英英释义

A power stroke refers to the phase in an engine cycle where the combustion of fuel occurs, resulting in the expansion of gases that push a piston down, producing mechanical work.

动力冲程是指在发动机循环中燃料燃烧发生的阶段，导致气体膨胀，从而推动活塞向下移动，产生机械功。

例句

1.During the power stroke 动力冲程, the fuel ignites and pushes the piston down.

在动力冲程动力冲程期间，燃料点燃并推动活塞向下移动。

2.The engine's power stroke 动力冲程 is crucial for generating the necessary thrust.

发动机的动力冲程动力冲程对产生必要的推力至关重要。

3.In a four-stroke engine, the power stroke 动力冲程 occurs once every two revolutions.

在四冲程发动机中，动力冲程动力冲程每两圈发生一次。

4.The efficiency of a car engine largely depends on the design of its power stroke 动力冲程.

汽车发动机的效率在很大程度上取决于其动力冲程动力冲程的设计。

5.The power stroke 动力冲程 is where the real work of the engine happens.

在动力冲程动力冲程中，发动机的真正工作发生。

作文

In the realm of engineering and mechanics, the term power stroke refers to a crucial phase in the operation of an engine or a machine. During this phase, energy is converted into useful work, which is essential for the functioning of various types of machinery. Understanding the concept of power stroke is vital for engineers and technicians who design and maintain engines, as it directly impacts efficiency and performance.The power stroke occurs after the compression stroke in a four-stroke engine cycle. In this phase, the fuel-air mixture ignites, resulting in an explosion that pushes the piston down. This downward movement is what generates the power needed to turn the crankshaft and ultimately drive the vehicle forward. Therefore, the effectiveness of the power stroke is a significant factor in determining the overall power output of the engine.Different types of engines utilize the power stroke in various ways. For instance, in a gasoline engine, the ignition of the fuel-air mixture is typically initiated by a spark plug. Conversely, in a diesel engine, the fuel is injected at high pressure, causing it to ignite from the heat of compression. Regardless of the method, the power stroke remains a pivotal moment where the engine's potential is realized.Moreover, the design of the engine can greatly influence the characteristics of the power stroke. Factors such as the shape of the combustion chamber, the timing of the ignition, and the type of fuel used can all affect how efficiently energy is converted during this phase. Engineers often conduct extensive research and testing to optimize these parameters, aiming to enhance the performance and reduce emissions of their engines.In addition to its technical implications, the power stroke can also serve as a metaphor in various contexts. For example, in sports, athletes often describe their peak performance moments as a power stroke, where they execute their skills with precision and strength, leading to successful outcomes. This analogy highlights the importance of timing, preparation, and execution, much like in an engine where the power stroke must be perfectly timed for maximum efficiency.Understanding the intricacies of the power stroke not only benefits those in the field of engineering but also provides valuable insights into the broader applications of power generation and utilization. As technology continues to advance, the principles surrounding the power stroke will likely evolve, paving the way for more efficient and environmentally friendly engines in the future.In conclusion, the power stroke is a fundamental element of engine operation, representing a critical point where energy is transformed into mechanical work. Its significance extends beyond mechanics, offering a rich metaphor for success and peak performance in various fields. By grasping the concept of the power stroke, one can appreciate the complexities of both engineering and the pursuit of excellence in any endeavor.

在工程和机械领域，短语power stroke指的是发动机或机器操作中的一个关键阶段。在这个阶段，能量被转化为有用的工作，这对各种类型的机械的运作至关重要。理解power stroke的概念对于设计和维护发动机的工程师和技术人员来说是至关重要的，因为它直接影响效率和性能。power stroke发生在四冲程发动机循环中的压缩冲程之后。在这个阶段，燃料-空气混合物点燃，导致爆炸将活塞向下推。这种向下的运动就是产生转动曲轴所需的动力，并最终推动车辆前进。因此，power stroke的有效性是决定发动机整体功率输出的重要因素。不同类型的发动机以不同的方式利用power stroke。例如，在汽油发动机中，燃料-空气混合物的点燃通常由火花塞启动。相反，在柴油发动机中，燃料以高压喷入，因压缩热而点燃。无论采用何种方法，power stroke仍然是实现发动机潜力的关键时刻。此外，发动机的设计可以极大地影响power stroke的特性。燃烧室的形状、点火时机和使用的燃料类型等因素都可能影响在这一阶段能量转化的效率。工程师们通常会进行广泛的研究和测试，以优化这些参数，旨在提高性能并减少排放。除了其技术含义，power stroke在各种上下文中也可以作为隐喻。例如，在体育运动中，运动员经常将他们的巅峰表现时刻称为power stroke，在那个时刻，他们以精确和力量执行技能，导致成功的结果。这个类比突出了时机、准备和执行的重要性，就像在发动机中，power stroke必须完美时机以获得最大效率。理解power stroke的复杂性不仅有利于工程领域的人士，也为电力生成和利用的更广泛应用提供了宝贵的见解。随着技术的不断进步，围绕power stroke的原则可能会演变，为未来更高效和环保的发动机铺平道路。总之，power stroke是发动机运行的基本要素，代表着能量转化为机械工作的关键点。它的重要性超越了机械学，为各个领域的成功和巅峰表现提供了丰富的隐喻。通过掌握power stroke的概念，人们可以欣赏到工程学的复杂性以及在任何努力中追求卓越的过程。