controllable pitch

简明释义

可变螺距可调螺距

英英释义

例句

1.The aircraft is equipped with a propeller that has a controllable pitch, allowing the pilot to adjust the blade angle for optimal performance.

这架飞机配备了一个具有可控螺距的螺旋桨，允许飞行员调整叶片角度以获得最佳性能。

2.The yacht features a controllable pitch propeller that allows for precise speed adjustments while maneuvering in tight spaces.

这艘游艇配备了一个可控螺距螺旋桨，允许在狭小空间内精确调整速度。

3.The benefits of controllable pitch rotors include better maneuverability and reduced noise levels during flight.

使用可控螺距旋翼的好处包括更好的机动性和飞行时降低的噪音水平。

4.In wind turbines, controllable pitch blades help manage energy output and protect the turbine from high winds.

在风力涡轮机中，可控螺距叶片帮助管理能量输出并保护涡轮机免受强风影响。

5.Using a controllable pitch system in marine engines can improve fuel efficiency by optimizing thrust based on speed.

在海洋发动机中使用可控螺距系统可以通过根据速度优化推力来提高燃油效率。

作文

In the world of aviation, the concept of controllable pitch is crucial for understanding how aircraft propellers operate. A controllable pitch propeller allows pilots to adjust the angle of the blades while in flight, which significantly enhances the aircraft's performance and efficiency. This technology is particularly important during takeoff, cruising, and landing phases, where different power settings are required. The primary advantage of a controllable pitch propeller lies in its ability to optimize thrust. For instance, during takeoff, a pilot can set the blades to a low pitch angle, allowing them to bite into the air more effectively and generate maximum thrust. Once the aircraft reaches cruising altitude, the pilot can then adjust the pitch to a higher angle, which decreases drag and allows the engine to operate more efficiently at lower RPMs. This dynamic adjustment not only improves fuel efficiency but also enhances the overall performance of the aircraft.Moreover, controllable pitch propellers contribute to better engine management. By enabling the pilot to fine-tune the pitch, they can maintain optimal engine RPMs, reducing wear and tear on the engine components. This aspect is particularly beneficial for long-haul flights, where engine longevity and reliability are paramount. Pilots are trained to utilize this feature effectively, ensuring that they can respond to changing flight conditions or emergencies with agility.In addition to enhancing performance and engine management, controllable pitch propellers also play a critical role in safety. In situations where an engine fails, the ability to adjust the pitch can help manage the aircraft's descent and control its glide path. This capability is essential for maintaining control of the aircraft and ensuring a safe landing, even under adverse conditions.The implementation of controllable pitch technology is not limited to commercial aviation; it is also prevalent in marine applications, such as ships and submarines. In these contexts, controllable pitch propellers allow vessels to maneuver more effectively, providing better control over speed and direction. This versatility highlights the importance of controllable pitch systems across various modes of transportation.In conclusion, the significance of controllable pitch in aviation and maritime industries cannot be overstated. Its ability to enhance performance, improve fuel efficiency, and increase safety makes it an essential component in modern aircraft and vessels. As technology continues to advance, we can expect further innovations in controllable pitch systems, leading to even greater efficiencies and capabilities in the future. Understanding this concept is vital for anyone interested in the fields of aviation and marine engineering, as it represents a key element in the ongoing quest for improved performance and safety in transportation.

在航空领域，可控螺旋桨角度的概念对于理解飞机螺旋桨的运作至关重要。可控螺旋桨角度允许飞行员在飞行中调节桨叶的角度，这显著增强了飞机的性能和效率。这项技术在起飞、巡航和着陆阶段尤为重要，因为这些阶段需要不同的动力设置。可控螺旋桨角度的主要优势在于它能够优化推力。例如，在起飞时，飞行员可以将桨叶设置为低角度，从而使其更有效地咬入空气并产生最大推力。一旦飞机达到巡航高度，飞行员便可以将桨叶的角度调整为较高的角度，这样可以减少阻力，使发动机在较低转速下更高效地运行。这种动态调整不仅提高了燃油效率，还增强了飞机的整体性能。此外，可控螺旋桨角度也有助于更好的发动机管理。通过使飞行员能够微调桨叶的角度，他们可以保持最佳的发动机转速，从而减少对发动机部件的磨损。这一方面对于长途飞行尤其重要，因为发动机的耐久性和可靠性至关重要。飞行员经过培训，能够有效利用这一特性，确保他们能够灵活应对不断变化的飞行条件或紧急情况。除了提高性能和发动机管理之外，可控螺旋桨角度在安全性方面也发挥着关键作用。在发动机故障的情况下，调节桨叶角度的能力可以帮助管理飞机的下降并控制其滑行路径。这一能力对于保持飞机的控制并确保安全着陆至关重要，即使在不利条件下。可控螺旋桨角度技术的应用不仅限于商业航空；它在海洋应用中也很普遍，例如船舶和潜艇。在这些环境中，可控螺旋桨角度允许船只更有效地操纵，提供更好的速度和方向控制。这种多功能性突显了可控螺旋桨角度系统在各种交通运输方式中的重要性。总之，可控螺旋桨角度在航空和海洋工业中的重要性不容小觑。它增强性能、提高燃油效率和增加安全性的能力使其成为现代飞机和船只的重要组成部分。随着技术的不断进步，我们可以期待可控螺旋桨角度系统的进一步创新，带来更大的效率和能力。理解这一概念对于任何对航空和海洋工程感兴趣的人来说都是至关重要的，因为它代表了在交通运输领域不断追求提高性能和安全性的关键元素。