retractable landing gear

简明释义

伸缩起落架

英英释义

例句

1.During landing, the retractable landing gear 可收起的起落架 deployed smoothly, allowing for a safe touchdown.

在着陆时，可收起的起落架 可收起的起落架平稳展开，确保安全着陆。

2.In case of an emergency, the pilot must know how to manually deploy the retractable landing gear 可收起的起落架.

在紧急情况下，飞行员必须知道如何手动展开可收起的起落架 可收起的起落架。

3.Before takeoff, the pilot conducted a thorough check of the retractable landing gear 可收起的起落架 to ensure it was functioning properly.

在起飞前，飞行员对可收起的起落架 可收起的起落架进行了彻底检查，以确保其正常工作。

4.The design of the retractable landing gear 可收起的起落架 reduces drag and enhances fuel efficiency.

设计的可收起的起落架 可收起的起落架减少了阻力，提高了燃油效率。

5.The aircraft's retractable landing gear 可收起的起落架 allows for improved aerodynamics during flight.

这架飞机的可收起的起落架 可收起的起落架在飞行过程中提高了空气动力学性能。

作文

The world of aviation is filled with intricate technologies that ensure the safety and efficiency of flight. One of the most crucial components of an aircraft is its landing gear, specifically the retractable landing gear. This system allows the wheels of the aircraft to be stowed away during flight, reducing drag and improving aerodynamic efficiency. Understanding the significance of retractable landing gear can enhance our appreciation for modern aviation technology.When an aircraft takes off, its primary focus is on achieving lift and maintaining speed. The presence of landing gear can create additional drag, which is why many commercial and military aircraft use retractable landing gear. By retracting the wheels into the fuselage, the aircraft can streamline its shape, allowing it to cut through the air more efficiently. This design not only helps in saving fuel but also contributes to faster speeds, which are essential for both commercial airlines and fighter jets.Moreover, the deployment and retraction of retractable landing gear is a carefully engineered process. Pilots must ensure that the landing gear is fully extended before landing, as this is critical for a safe touchdown. The mechanism typically involves hydraulic systems that operate the landing gear doors and the wheels themselves. A failure in this system could lead to catastrophic consequences, making it vital for pilots to conduct thorough pre-flight checks.The history of retractable landing gear dates back to the early days of aviation. Initially, aircraft used fixed landing gear, which was simpler but less efficient. As technology advanced, engineers began to recognize the benefits of retractable systems. The first successful implementation of retractable landing gear occurred in the 1920s, and since then, it has become a standard feature in most modern aircraft designs.In addition to enhancing performance, retractable landing gear also plays a role in aesthetics. Aircraft designers strive to create visually appealing models, and the integration of retractable systems contributes to a sleek and modern appearance. This aspect is particularly important for commercial airlines, where branding and image are paramount.Safety is another significant factor associated with retractable landing gear. In the event of an emergency, having the ability to retract the landing gear can prevent damage to the aircraft's structure. For instance, if an aircraft needs to make an emergency landing on a runway that is not fully prepared, retracting the landing gear can minimize the risk of the wheels getting stuck or causing a dangerous situation.In conclusion, the retractable landing gear is an essential component of modern aircraft that enhances performance, safety, and aesthetics. Its ability to reduce drag during flight while ensuring safe landings makes it a vital innovation in aviation technology. As we continue to advance in aerospace engineering, the importance of systems like retractable landing gear will remain at the forefront of designing efficient and safe aircraft for the future.

航空世界充满了复杂的技术，确保飞行的安全和效率。飞机的一个关键组成部分是其起落架，特别是可收放起落架。该系统允许飞机的轮子在飞行过程中收起，从而减少阻力，提高空气动力效率。理解可收放起落架的重要性可以增强我们对现代航空技术的欣赏。当飞机起飞时，其主要关注点是实现升力和保持速度。起落架的存在可能会产生额外的阻力，这就是为什么许多商业和军用飞机使用可收放起落架。通过将轮子收回机身，飞机可以流线型其形状，从而更有效地穿过空气。这种设计不仅有助于节省燃料，还能提高速度，这对商业航空公司和战斗机都是至关重要的。此外，可收放起落架的部署和收回是一个精心设计的过程。飞行员必须确保在着陆前起落架完全展开，因为这对安全着陆至关重要。该机制通常涉及操作起落架门和轮子的液压系统。该系统的故障可能导致灾难性的后果，因此飞行员必须进行彻底的飞行前检查。可收放起落架的历史可以追溯到航空的早期阶段。最初，飞机使用固定起落架，这种设计更简单，但效率较低。随着技术的进步，工程师们开始认识到可收放系统的好处。第一次成功实施可收放起落架发生在20世纪20年代，从那时起，它就成为大多数现代飞机设计的标准特征。除了提高性能外，可收放起落架还在美学上发挥作用。飞机设计师力求创造视觉上吸引人的模型，而集成可收放系统有助于实现流线型和现代外观。这个方面对商业航空公司尤其重要，因为品牌和形象至关重要。安全性是与可收放起落架相关的另一个重要因素。在紧急情况下，能够收起起落架可以防止飞机结构受损。例如，如果一架飞机需要在未完全准备好的跑道上进行紧急着陆，收起起落架可以降低轮子卡住或造成危险情况的风险。总之，可收放起落架是现代飞机的一个基本组成部分，增强了性能、安全性和美观性。它在飞行过程中减少阻力的能力，同时确保安全着陆，使其成为航空技术中的重要创新。随着我们在航空航天工程领域的不断进步，像可收放起落架这样的系统的重要性将继续处于设计高效、安全飞机的前沿。