controllable pitch

简明释义

可变螺距

英英释义

例句

1.Sailboats often utilize controllable pitch propellers to enhance maneuverability in tight spaces.

帆船通常使用可控螺距螺旋桨，以增强在狭小空间内的机动性。

2.Using a controllable pitch system allows the captain to adjust the blade angle for better fuel efficiency.

使用可控螺距系统可以让机长调整叶片角度，以提高燃油效率。

3.The new model features a controllable pitch rotor, making it more versatile for different flying conditions.

新型号配备了可控螺距旋翼，使其在不同飞行条件下更具多功能性。

4.The aircraft is equipped with a propeller that has a controllable pitch to optimize performance during takeoff and landing.

这架飞机配备了一个具有可控螺距的螺旋桨，以优化起飞和着陆时的性能。

5.In marine applications, controllable pitch propellers can improve a ship's handling and speed.

在海洋应用中，可控螺距螺旋桨可以改善船只的操控性和速度。

作文

In the world of aviation and marine engineering, the term controllable pitch refers to a mechanism that allows the angle of the blades on a propeller or rotor to be adjusted during operation. This innovation has greatly enhanced the efficiency and performance of various types of vehicles, from airplanes to ships. The ability to manipulate the pitch of the blades means that operators can optimize thrust and fuel consumption depending on the specific conditions they encounter, such as changes in speed, load, or environmental factors.The concept of controllable pitch is particularly crucial in aviation. Aircraft propellers with this feature can change the pitch of their blades to maintain optimal performance during different phases of flight. For example, during takeoff, a lower pitch angle is generally used to maximize thrust. Conversely, during cruising, the pitch can be increased to improve fuel efficiency. This adaptability not only enhances the aircraft's performance but also contributes to reducing operational costs, making it an attractive option for airlines and private pilots alike.In marine applications, controllable pitch propellers serve a similar purpose. Ships equipped with these propellers can adjust the blade angle to respond effectively to varying sea conditions and operational requirements. This capability allows vessels to achieve better maneuverability and stability, especially in challenging environments such as rough seas or congested ports. Furthermore, the flexibility provided by controllable pitch systems can lead to significant savings in fuel consumption, which is a critical factor in maritime operations given the rising costs of fuel and increasing environmental regulations.One of the most significant advantages of controllable pitch technology is its contribution to safety. By allowing for real-time adjustments to the propeller or rotor blades, pilots and captains can respond more effectively to unexpected changes in their operational environment. This responsiveness can be the difference between maintaining control and experiencing a loss of power or maneuverability. As a result, the integration of controllable pitch systems into modern aircraft and vessels has become a standard practice, reflecting the industry's commitment to enhancing safety and performance.However, the implementation of controllable pitch mechanisms is not without challenges. The complexity of the systems requires sophisticated engineering and maintenance. Operators must ensure that the mechanisms are functioning correctly to avoid potential failures during critical phases of operation. Additionally, the initial investment for such advanced technology can be substantial, which may deter some smaller operators from adopting it.In conclusion, the term controllable pitch encapsulates a vital aspect of modern aviation and marine engineering. Its ability to enhance performance, improve fuel efficiency, and increase safety makes it an invaluable feature in today's vehicles. As technology continues to advance, we can expect further innovations in controllable pitch systems, ultimately leading to even greater efficiencies and capabilities in both the air and at sea. The ongoing development and refinement of this technology will undoubtedly play a significant role in shaping the future of transportation, making it more sustainable and efficient for generations to come.

在航空和海洋工程的世界中，术语可控螺距指的是一种机制，它允许在操作过程中调整螺旋桨或转子叶片的角度。这项创新极大地增强了各种类型车辆的效率和性能，从飞机到船只。能够操纵叶片的螺距意味着操作人员可以根据他们遇到的特定条件（如速度、负载或环境因素的变化）来优化推力和燃料消耗。可控螺距的概念在航空中尤为重要。配备此功能的飞机螺旋桨可以在飞行的不同阶段改变叶片的螺距。例如，在起飞时，通常使用较低的螺距角以最大化推力。相反，在巡航期间，螺距可以增加以提高燃油效率。这种适应性不仅增强了飞机的性能，还帮助降低运营成本，使其成为航空公司和私人飞行员的一个吸引选项。在海洋应用中，可控螺距螺旋桨具有类似的目的。配备这些螺旋桨的船只可以调整叶片角度，以有效应对变化的海洋条件和操作要求。这种能力使船只在恶劣环境（如波涛汹涌的海面或拥挤的港口）中实现更好的机动性和稳定性。此外，可控螺距系统提供的灵活性可以显著节省燃料消耗，这在考虑到燃料成本上升和日益严格的环境法规时，是海事运营中的一个关键因素。可控螺距技术的一个重要优势是其对安全性的贡献。通过允许实时调整螺旋桨或转子叶片，飞行员和船长可以更有效地应对操作环境中的意外变化。这种响应能力可能是保持控制与经历动力或机动性丧失之间的区别。因此，将可控螺距系统集成到现代飞机和船只中已成为一种标准做法，反映了行业对提高安全性和性能的承诺。然而，实施可控螺距机制并非没有挑战。这些系统的复杂性需要精密的工程和维护。操作人员必须确保这些机制正常工作，以避免在关键操作阶段发生潜在故障。此外，这种先进技术的初始投资可能相当可观，这可能会阻止一些较小的运营商采用。总之，术语可控螺距概括了现代航空和海洋工程的重要方面。它提高性能、改善燃油效率和增加安全性的能力使其成为当今车辆中不可或缺的特征。随着技术的不断进步，我们可以期待可控螺距系统的进一步创新，最终在空中和海上实现更大的效率和能力。这项技术的持续发展和完善无疑将在塑造未来交通方面发挥重要作用，使其对未来几代人更加可持续和高效。