multi stage rocket

简明释义

多级火箭

英英释义

例句

1.NASA has been using multi stage rockets for decades to send missions into space.

NASA几十年来一直使用多级火箭将任务送入太空。

2.The launch of the satellite was successful thanks to the advanced design of the multi stage rocket.

由于先进的设计，卫星的发射成功归功于这款多级火箭。

3.The first stage of the multi stage rocket provides the initial thrust needed to escape Earth's gravity.

这款多级火箭的第一阶段提供了逃离地球重力所需的初始推力。

4.After the first stage burns out, the multi stage rocket jettisons its boosters to reduce weight.

在第一阶段燃烧完毕后，多级火箭会抛掉助推器以减轻重量。

5.Engineers are constantly improving the efficiency of multi stage rockets to make space travel more affordable.

工程师们不断提升多级火箭的效率，以使太空旅行更具经济性。

作文

The development of space exploration has always fascinated humanity, and one of the key innovations that have propelled us into the cosmos is the multi stage rocket. A multi stage rocket is a type of launch vehicle that uses multiple stages to reach its destination. Each stage contains its own engines and propellant, which are jettisoned when they are no longer needed, allowing the rocket to shed weight and continue its ascent into space more efficiently.The concept of a multi stage rocket was first introduced in the early 20th century, but it was not until the mid-20th century that it became a practical reality. The first successful multi stage rocket was the V-2, developed by German engineer Wernher von Braun during World War II. This rocket laid the groundwork for future advancements in rocketry and space travel.One of the primary advantages of using a multi stage rocket is the ability to achieve higher altitudes and speeds. Since each stage can be optimized for a specific phase of the flight, it allows for a more efficient use of fuel. For instance, the first stage is designed to provide the initial thrust needed to escape Earth's atmosphere, while subsequent stages are designed for the vacuum of space, where less atmospheric drag is present.NASA's Saturn V, which was used during the Apollo missions, is one of the most famous examples of a multi stage rocket. Standing at 363 feet tall, it was capable of carrying astronauts to the Moon. The Saturn V had three main stages, each with its own engines and fuel systems. Once a stage completed its burn, it would detach from the rocket, significantly reducing the weight and allowing the remaining stages to continue their journey.In recent years, private companies have also embraced the multi stage rocket design. SpaceX, for example, has developed the Falcon 9, which features a reusable first stage that can land back on Earth after launch. This innovation not only reduces the cost of space travel but also demonstrates the effectiveness of the multi stage rocket design in modern aerospace engineering.The future of space exploration relies heavily on advancements in multi stage rocket technology. As we aim for Mars and beyond, engineers are continually seeking ways to improve the efficiency and safety of these rockets. Concepts such as in-orbit refueling and advanced propulsion systems are being explored to extend the capabilities of multi stage rockets for deep space missions.In conclusion, the multi stage rocket is an essential component of modern space exploration. Its innovative design allows for greater payload capacity, increased efficiency, and the ability to reach distant destinations. As we look toward the stars, the multi stage rocket will undoubtedly play a crucial role in our quest to explore the universe, making the dreams of today into the realities of tomorrow.

太空探索的发展一直吸引着人类，而推动我们进入宇宙的关键创新之一就是多级火箭。多级火箭是一种使用多个阶段到达目的地的发射载具。每个阶段都包含自己的发动机和推进剂，当不再需要时被抛弃，从而使火箭减轻重量，更有效地继续向太空升空。多级火箭的概念最早是在20世纪初提出的，但直到20世纪中叶才成为一种实用现实。第一枚成功的多级火箭是V-2，由德国工程师维尔纳·冯·布劳恩在第二次世界大战期间开发。这枚火箭为未来的火箭技术和太空旅行的进步奠定了基础。使用多级火箭的主要优势之一是能够达到更高的高度和速度。由于每个阶段可以针对飞行的特定阶段进行优化，因此可以更有效地利用燃料。例如，第一阶段旨在提供逃离地球大气所需的初始推力，而后续阶段则设计用于太空真空中，那里几乎没有大气阻力。美国国家航空航天局的土星五号火箭是最著名的多级火箭之一，在阿波罗任务中使用。它高达363英尺，能够将宇航员送往月球。土星五号有三个主要阶段，每个阶段都有自己的发动机和燃料系统。一旦一个阶段完成其燃烧，它就会与火箭分离，从而显著减轻重量，允许剩余的阶段继续其旅程。近年来，私人公司也开始采用多级火箭设计。例如，SpaceX开发的猎鹰9号火箭具有可重复使用的第一阶段，可以在发射后重新降落到地球。这一创新不仅降低了太空旅行的成本，还展示了现代航空航天工程中多级火箭设计的有效性。太空探索的未来在很大程度上依赖于多级火箭技术的进步。当我们瞄准火星及更远的地方时，工程师们不断寻求改善这些火箭的效率和安全性的方法。诸如轨道加油和先进推进系统等概念正在被探索，以扩展多级火箭在深空任务中的能力。总之，多级火箭是现代太空探索的重要组成部分。其创新设计允许更大的有效载荷能力、更高的效率，以及到达遥远目的地的能力。当我们展望星空时，多级火箭无疑将在我们探索宇宙的追求中发挥关键作用，使今天的梦想变成明天的现实。