marine propeller

简明释义

船用螺旋桨

英英释义

例句

1.The design of the marine propeller affects fuel consumption and maneuverability.

设计的船用螺旋桨会影响燃油消耗和机动性。

2.The efficiency of a ship's speed is largely determined by its marine propeller.

一艘船的速度效率在很大程度上取决于它的船用螺旋桨。

3.Regular maintenance of the marine propeller can prevent costly repairs later.

定期维护船用螺旋桨可以防止后期昂贵的修理。

4.Innovations in marine propeller technology have led to more efficient designs.

在船用螺旋桨技术方面的创新导致了更高效的设计。

5.A damaged marine propeller can significantly reduce a vessel's performance.

损坏的船用螺旋桨会显著降低船舶的性能。

作文

The world of maritime engineering is filled with fascinating technologies that enable ships to navigate the vast oceans. Among these technologies, the marine propeller plays a crucial role in the movement of vessels. A marine propeller is a device with blades that rotates to push water backward, thereby propelling the ship forward. This mechanism is essential for the efficiency and effectiveness of any maritime operation, from commercial shipping to recreational boating.Understanding the design and function of a marine propeller is vital for anyone involved in maritime activities. The basic principle behind a marine propeller is similar to that of a windmill; as the blades spin, they create a pressure difference that moves the water, generating thrust. The shape, size, and number of blades on a marine propeller can greatly influence its performance. For instance, a propeller with more blades can provide greater thrust at lower speeds, while a propeller with fewer blades is typically more efficient at higher speeds.Moreover, the materials used to construct a marine propeller are also important. Traditionally made from bronze or stainless steel, modern marine propellers may also be constructed from composite materials that offer advantages such as reduced weight and increased resistance to corrosion. The choice of material affects not only the durability of the propeller but also its performance in different marine environments.Maintenance of a marine propeller is another critical aspect that cannot be overlooked. Regular inspections are necessary to ensure that the propeller remains free from damage and fouling, which can significantly impact its efficiency. Any signs of wear or cavitation should be addressed promptly to avoid costly repairs and ensure safe navigation.In addition to its technical aspects, the marine propeller also has an environmental impact. The design and operation of a marine propeller can influence fuel consumption and emissions. Engineers are increasingly focused on developing more efficient propeller designs that minimize environmental footprints while maximizing performance. This includes innovations such as ducted propellers and controllable pitch propellers that allow for better maneuverability and efficiency.In conclusion, the marine propeller is a fundamental component of maritime technology, essential for the propulsion of vessels across the world's waters. Its design, materials, and maintenance all play significant roles in determining a ship's performance and efficiency. As the maritime industry continues to evolve, so too will the marine propeller, pushing the boundaries of what is possible in marine engineering. Understanding this critical component not only enhances our appreciation of maritime operations but also underscores the importance of innovation in preserving our oceans for future generations.

海洋工程的世界充满了迷人的技术，使船只能够在广阔的海洋中航行。在这些技术中，船舶螺旋桨在船只的移动中发挥着至关重要的作用。船舶螺旋桨是一个带有叶片的装置，旋转时向后推动水，从而推动船只向前。这一机制对任何海事操作的效率和有效性都是必不可少的，从商业航运到休闲划船。理解船舶螺旋桨的设计和功能对于任何参与海事活动的人来说都是至关重要的。船舶螺旋桨的基本原理与风车相似；当叶片旋转时，它们会产生压力差，从而移动水，产生推力。船舶螺旋桨的形状、大小和叶片数量都可以极大地影响其性能。例如，具有更多叶片的螺旋桨可以在较低速度下提供更大的推力，而具有较少叶片的螺旋桨通常在较高速度下更为高效。此外，用于制造船舶螺旋桨的材料也很重要。传统上由青铜或不锈钢制成，现代船舶螺旋桨也可能由复合材料构成，这些材料具有减轻重量和增加耐腐蚀性的优点。材料的选择不仅影响螺旋桨的耐用性，还影响其在不同海洋环境中的性能。维护船舶螺旋桨是另一个不可忽视的重要方面。定期检查是必要的，以确保螺旋桨保持无损坏和污垢，这可能会显著影响其效率。任何磨损或气蚀的迹象都应及时处理，以避免昂贵的维修并确保安全航行。除了技术方面，船舶螺旋桨的环境影响也是值得关注的。船舶螺旋桨的设计和操作可以影响燃料消耗和排放。工程师们越来越关注开发更高效的螺旋桨设计，以最小化环境足迹，同时最大化性能。这包括诸如导管螺旋桨和可控螺距螺旋桨等创新，允许更好的机动性和效率。总之，船舶螺旋桨是海洋技术的基本组成部分，对于船只在世界水域的推进至关重要。其设计、材料和维护在决定船只性能和效率方面都起着重要作用。随着海事行业的不断发展，船舶螺旋桨也将不断演变，推动海洋工程领域的可能性。理解这一关键组件不仅增强了我们对海事操作的欣赏，也强调了在保护我们的海洋以供后代使用方面创新的重要性。