screw propeller

简明释义

螺旋推进器

英英释义

例句

1.Engineers designed a new screw propeller 螺旋桨 to improve fuel efficiency in marine vessels.

工程师们设计了一种新的screw propeller 螺旋桨，以提高海洋船只的燃油效率。

2.The ship was equipped with a powerful screw propeller 螺旋桨 that allowed it to navigate through rough waters.

这艘船配备了强大的screw propeller 螺旋桨，使其能够在恶劣的水域中航行。

3.The yacht's screw propeller 螺旋桨 provided excellent thrust, making it easy to maneuver.

游艇的screw propeller 螺旋桨提供了出色的推力，使其易于操控。

4.During the maintenance check, the technician examined the screw propeller 螺旋桨 for any signs of wear and tear.

在维护检查期间，技术员检查了screw propeller 螺旋桨是否有磨损迹象。

5.The screw propeller 螺旋桨 on the submarine allows it to move silently underwater.

潜艇上的screw propeller 螺旋桨使其能够在水下静音移动。

作文

The invention of the screw propeller has revolutionized the field of marine engineering and transportation. Before its introduction, ships relied on sails and oars for propulsion, which were often inefficient and limited in their capabilities. The screw propeller allows vessels to move through water with greater speed and maneuverability, making it an essential component of modern shipping and naval operations.The basic principle behind the screw propeller is quite simple. It consists of a rotating helical blade that pushes water backwards, creating thrust that propels the ship forward. This design is not only effective but also efficient, as it minimizes drag and maximizes the energy converted from the engine into forward motion. The screw propeller can be found on various types of vessels, from small boats to large cargo ships and submarines.One of the main advantages of the screw propeller is its ability to operate effectively at different speeds. Unlike traditional sails, which are dependent on wind conditions, the screw propeller can provide consistent power regardless of external factors. This reliability has made it a preferred choice for naval architects and engineers when designing new ships.Moreover, the screw propeller is relatively easy to maintain. While it does require regular inspections and occasional repairs, its mechanical simplicity allows for straightforward maintenance procedures. This is particularly important for commercial vessels that need to minimize downtime and maintain operational efficiency.The evolution of the screw propeller technology has also led to advancements in materials and designs. Modern propellers are often made from lightweight materials such as aluminum or composites, which reduce weight while maintaining strength and durability. Additionally, innovations in blade design have improved hydrodynamics, allowing for even greater efficiency and performance.As we look to the future, the role of the screw propeller will continue to be significant. With the increasing focus on sustainability and reducing carbon emissions, engineers are exploring ways to enhance the efficiency of screw propeller systems. This includes integrating alternative energy sources, such as electric propulsion, which can work in conjunction with traditional screw propeller systems to create greener shipping solutions.In conclusion, the screw propeller has played a crucial role in shaping maritime technology and continues to be a vital component in the design and operation of modern vessels. Its efficiency, reliability, and ease of maintenance make it an indispensable part of marine engineering. As we advance towards more sustainable practices, the screw propeller will undoubtedly adapt and evolve, ensuring its place in the future of maritime transportation.

螺旋桨的发明彻底改变了海洋工程和运输领域。在其引入之前，船只依赖帆和桨来推进，这往往效率低下且能力有限。螺旋桨使得船只能够以更快的速度和更好的机动性在水中移动，使其成为现代航运和海军作战中不可或缺的组成部分。螺旋桨的基本原理相当简单。它由一个旋转的螺旋叶片构成，向后推水，从而产生推力推动船只向前。这种设计不仅有效，而且高效，因为它最小化了阻力并最大化了从发动机转化为前进运动的能量。螺旋桨可以在各种类型的船只上找到，从小型船只到大型货船和潜艇。螺旋桨的主要优点之一是它能够在不同速度下有效运作。与传统的帆依赖于风的条件不同，螺旋桨可以提供一致的动力，而不受外部因素的影响。这种可靠性使其成为海军建筑师和工程师在设计新船时的首选。此外，螺旋桨相对容易维护。虽然它确实需要定期检查和偶尔维修，但其机械简单性允许简单的维护程序。这对于需要最小化停机时间和保持运营效率的商业船只尤为重要。螺旋桨技术的发展也导致了材料和设计的进步。现代螺旋桨通常由铝或复合材料等轻质材料制成，减少了重量，同时保持强度和耐用性。此外，叶片设计的创新改善了流体动力学，使效率和性能更高。展望未来，螺旋桨的角色将继续显著。随着对可持续性和减少碳排放的关注日益增加，工程师们正在探索增强螺旋桨系统效率的方法。这包括整合替代能源，如电力推进，这可以与传统的螺旋桨系统结合，以创造更环保的航运解决方案。总之，螺旋桨在塑造海事技术方面发挥了关键作用，并继续作为现代船只设计和操作的重要组成部分。其效率、可靠性和易于维护使其成为海洋工程中不可或缺的一部分。随着我们朝着更可持续的实践迈进，螺旋桨无疑会适应和发展，确保其在未来海洋运输中的地位。