piston

简明释义

英[ˈpɪstən]美[ˈpɪstən]

n. 活塞；（铜管乐器上的）活塞阀键

【名】 （Piston）（英、意）皮斯顿（人名）

复 数 p i s t o n s

英英释义

单词用法

同义词

反义词

例句

1.We've got my container, my piston here.

这里是容器和活塞。

2.A two-stroke engine has no moving valves, and the spark plug fires each time the piston hits the top of its cycle.

二冲程发动机没有移动的阀，火花塞每次点火活塞到达循环顶端。

3.The final step came when steam was introduced into the cylinder to drive the piston backward as well as forward, thereby increasing the speed of the engine and cutting its fuel consumption.

最后一步是将蒸汽引入气缸，使得活塞前后推动，从而提高了发动机的速度，降低了燃料消耗。

4.The piston is reciprocating inside cylinder.

活塞在汽缸内部往复运动。

5.Should it have a long or short piston?

活塞应该长还是短？

6.A two-stroke engine has no moving valves, and the spark plug fires each time the piston hits the top of its cycle.

二冲程发动机没有移动的阀，火花塞每次点火活塞到达循环顶端。

7.We have a weight on the piston, and that weight is chosen so that p2 it acts as though p external is equal to p2.

让活塞上放一重物，让它的效果刚好,等同于外压强。

8.A damaged piston can lead to a significant drop in engine performance.

损坏的活塞会导致发动机性能显著下降。

9.When the piston moves down, it creates a vacuum that draws in air and fuel.

当活塞向下移动时，它会产生一个真空，从而吸入空气和燃料。

10.In a hydraulic system, the piston helps to amplify force.

在液压系统中，活塞有助于放大力量。

11.The engine's piston is responsible for converting fuel into mechanical energy.

发动机的活塞负责将燃料转化为机械能。

12.The mechanic replaced the worn-out piston with a new one.

机械师用一个新的活塞替换了磨损的活塞。

作文

In the world of mechanical engineering, the term piston refers to a crucial component found in many types of engines and machines. A piston is a cylindrical piece that moves up and down within a cylinder, playing a vital role in converting pressure into mechanical energy. This process is essential for the operation of internal combustion engines, where fuel and air are ignited to produce high-pressure gases that push the piston downward, ultimately turning the crankshaft and powering the vehicle. The design and functionality of a piston are closely related to the efficiency and performance of an engine. Typically made from aluminum or cast iron, a piston must withstand extreme temperatures and pressures while maintaining a tight seal within the cylinder. This sealing is achieved through the use of piston rings, which prevent the escape of gases and ensure that the combustion process is efficient. The movement of the piston is also synchronized with the engine's timing mechanism, ensuring that the intake and exhaust cycles occur at the right moments.Understanding the role of the piston is critical for anyone interested in automotive engineering or mechanics. For example, when diagnosing engine problems, mechanics often inspect the piston for signs of wear or damage. A damaged piston can lead to a loss of compression, resulting in reduced engine performance and efficiency. Therefore, regular maintenance and inspection of the piston and its associated components are essential for the longevity of an engine.Moreover, the concept of the piston extends beyond just automotive applications. In hydraulic systems, pistons are used to convert fluid pressure into linear motion. This principle is utilized in various machinery, including construction equipment and industrial presses. The versatility of the piston in different applications highlights its importance in engineering and technology.In conclusion, the piston is a fundamental component in many mechanical systems, particularly in engines. Its ability to convert pressure into motion makes it indispensable in various applications, from automobiles to industrial machinery. A thorough understanding of the piston's function and maintenance is essential for anyone involved in engineering or mechanics. By appreciating the significance of the piston, we can better understand the complexities of modern machinery and the innovations that drive our technological advancements.

在机械工程的世界中，术语活塞指的是许多类型的发动机和机器中一个至关重要的组件。活塞是一个在气缸内上下移动的圆柱形部件，在将压力转化为机械能的过程中发挥着重要作用。这一过程对于内燃机的运行至关重要，燃料和空气被点燃以产生高压气体，推动活塞向下，从而最终转动曲轴并驱动车辆。活塞的设计和功能与发动机的效率和性能密切相关。通常由铝或铸铁制成，活塞必须承受极端的温度和压力，同时在气缸内保持紧密的密封。这种密封通过使用活塞环来实现，活塞环防止气体泄漏，并确保燃烧过程的高效进行。活塞的运动还与发动机的定时机制同步，确保进气和排气周期在正确的时刻发生。理解活塞的作用对于任何对汽车工程或机械感兴趣的人来说都是至关重要的。例如，在诊断发动机问题时，机械师通常会检查活塞是否有磨损或损坏的迹象。损坏的活塞可能导致压缩损失，从而降低发动机性能和效率。因此，定期维护和检查活塞及其相关组件对于发动机的使用寿命至关重要。此外，活塞的概念不仅限于汽车应用。在液压系统中，活塞用于将流体压力转化为线性运动。这一原理在各种机械中得到了应用，包括建筑设备和工业压机。活塞在不同应用中的多功能性突显了它在工程和技术中的重要性。总之，活塞是许多机械系统中的基本组件，特别是在发动机中。它将压力转化为运动的能力使其在从汽车到工业机械等各种应用中不可或缺。全面了解活塞的功能和维护对于任何参与工程或机械的人来说都是必不可少的。通过欣赏活塞的重要性，我们可以更好地理解现代机械的复杂性以及推动我们技术进步的创新。