extravehicular

简明释义

英[ˌekstrəvəˈhɪkjələ(r)]美[ˌekstrəviˈhɪkjələr]

adj. 太空船外的；在宇宙飞船外部活动的；宇宙飞船外的，舱外的

英英释义

单词用法

同义词

反义词

例句

1.Ground test facilities to validate astronauts' suit must be built in order to achieve the Extravehicular activity.

为了完成航天员的出舱活动任务，必须建设可以验证航天员出舱活动适应性的地面试验设备。

2.In the field of manned spaceflight, extravehicular spacesuit is the essential equipment in extravehicular activity (EVA).

在载人航天领域，舱外航天服是航天员进行出舱活动的必备装备。

3.EVA spacesuit not only provides life support for astronaut, but also should have a high activity performance. So the astronaut can finish all kinds of extravehicular work. It is an ergonomics problem.

舱外航天服除了为航天员在出舱活动时提供基本的生命保障外，还应具有很高的活动性能，从而使航天员能够有效地完成各种舱外作业，这就涉及到工效学的问题。

4.The EVA is expected to open the door from the beginning, the need to close the door and a half hours to four minutes, the astronauts in extravehicular activities, two minutes.

预计这次出舱活动从打开舱门算起，到关上舱门需要半小时到四十分钟左右，航天员在舱外活动二十分钟左右。

5.A novel method to measure China's intravehicular mobility unit (IMU) and extravehicular mobility unit (EMU) spacesuit joints' mechanical characteristics is presented in this article.

提出了一种新的方法用于测量中国舱内和舱外航天服的关节力学特性。

6.Space radiation heat transfer and heat flux through extravehicular spacesuit must be solved for the design of the spacesuit passive thermal protection.

进行了舱外航天服的被动热防护性设计，了解其空间辐射换热及空间热流。

7.The orbital radiation heat flux received by the spacesuit used for extravehicular activity ( EVA )is analyzed.

分析了舱外航天服在轨道空间环境的辐射换热热流。

8.Objective To observe the effects of active heating system for spacesuit gloves on extravehicular working performance.

目的探讨对舱外航天服手套进行主动加热是否会对舱外手动作业的工效造成影响。

9.The astronaut conducted an extravehicular 舱外 activity to repair the satellite.

宇航员进行了一个舱外活动来修理卫星。

10.During the extravehicular 舱外 mission, the team collected samples from the surface of Mars.

在这次舱外任务中，团队从火星表面采集了样本。

11.Safety protocols for extravehicular 舱外 activities are crucial for astronaut safety.

针对舱外活动的安全协议对宇航员的安全至关重要。

12.The extravehicular 舱外 suit is designed to protect astronauts from harsh space conditions.

这个舱外宇航服旨在保护宇航员免受恶劣的太空环境影响。

13.NASA has developed new technologies to enhance extravehicular 舱外 mobility.

NASA开发了新技术，以增强舱外机动性。

作文

The concept of extravehicular activities, often abbreviated as EVA, is crucial in the field of space exploration. When astronauts venture outside their spacecraft to perform tasks in the vacuum of space, they engage in extravehicular operations. These activities can range from repairing satellites to conducting scientific experiments and even assembling components of the International Space Station (ISS). The importance of extravehicular activities cannot be overstated, as they enable humans to extend their reach beyond the confines of their spacecraft and interact directly with the environment of space. One of the most significant aspects of extravehicular activities is the preparation that goes into them. Astronauts undergo extensive training to ensure they can handle the challenges posed by the harsh conditions of space. This training includes simulations of extravehicular scenarios on Earth, where they learn to operate in a spacesuit, manage their oxygen supply, and execute various tasks while floating in microgravity. The physical and mental demands of these activities require astronauts to be in peak condition, as any misstep could have catastrophic consequences. Moreover, extravehicular activities are not just about performing tasks; they also involve a high degree of coordination with mission control. Astronauts must communicate effectively with their teams on the ground, who monitor their progress and provide guidance throughout the operation. This collaboration is essential for ensuring the safety and success of each extravehicular mission. For instance, during a recent mission to repair a solar panel on the ISS, the astronaut's ability to follow instructions from mission control was vital to completing the task successfully. The technological advancements that support extravehicular activities have evolved significantly over the years. Early missions relied on rudimentary spacesuits that offered limited protection and mobility. Today’s suits are highly sophisticated, equipped with life-support systems, communication devices, and tools designed specifically for use in space. These innovations have greatly enhanced the safety and efficiency of extravehicular operations, allowing astronauts to perform more complex tasks than ever before. In addition to their practical applications, extravehicular activities also hold a symbolic significance in the pursuit of human exploration. Every time an astronaut steps out into space, it represents humanity's unyielding desire to explore the unknown. These moments inspire future generations to dream big and pursue careers in science, technology, engineering, and mathematics (STEM). The images of astronauts floating against the backdrop of Earth serve as a reminder of our planet's fragility and the vastness of the universe. In conclusion, extravehicular activities are a testament to human ingenuity and perseverance. They showcase our ability to adapt to extreme environments and push the boundaries of what is possible. As we look toward the future of space exploration, the role of extravehicular activities will undoubtedly remain central to our endeavors, enabling us to uncover the mysteries of the cosmos and expand our understanding of the universe. The continued investment in research and development for extravehicular technologies will ensure that we are prepared for the challenges that lie ahead, paving the way for future missions to Mars and beyond.

“extravehicular”活动的概念，通常缩写为EVA，在太空探索领域至关重要。当宇航员走出他们的宇宙飞船，在太空真空中执行任务时，他们参与了extravehicular操作。这些活动可以包括修理卫星、进行科学实验，甚至组装国际空间站（ISS）的组件。extravehicular活动的重要性不容小觑，因为它们使人类能够超越宇宙飞船的限制，直接与太空环境互动。 extravehicular活动最重要的方面之一是为其做好准备。宇航员接受广泛的训练，以确保他们能够应对太空恶劣条件带来的挑战。这种训练包括在地球上模拟extravehicular场景，学习如何在航天服中操作、管理氧气供应，并在微重力环境中执行各种任务。这些活动的身体和心理要求使宇航员必须保持最佳状态，因为任何失误都可能导致灾难性后果。 此外，extravehicular活动不仅仅是执行任务；它们还涉及与任务控制的高度协调。宇航员必须与地面团队有效沟通，监控他们的进展并在整个操作过程中提供指导。这种合作对于确保每次extravehicular任务的安全和成功至关重要。例如，在最近一次修理国际空间站太阳能电池板的任务中，宇航员遵循任务控制指令的能力对成功完成任务至关重要。 支持extravehicular活动的技术进步多年来显著演变。早期的任务依赖于保护和机动性有限的基本航天服。今天的航天服高度复杂，配备有生命支持系统、通信设备和专为太空使用而设计的工具。这些创新大大提高了extravehicular操作的安全性和效率，使宇航员能够执行比以往更复杂的任务。 除了实际应用外，extravehicular活动在追求探索人类方面也具有象征意义。每当宇航员踏出太空时，这就代表着人类不屈不挠的探索未知的渴望。这些时刻激励着未来几代人去追求伟大的梦想，追求科学、技术、工程和数学（STEM）领域的职业。宇航员漂浮在地球背景下的图像提醒我们地球的脆弱性和宇宙的浩瀚。 总之，extravehicular活动是人类智慧和毅力的证明。它们展示了我们适应极端环境的能力以及推动可能性边界的能力。展望未来的太空探索，extravehicular活动的角色无疑将继续是我们努力的核心，使我们能够揭示宇宙的奥秘，扩展我们对宇宙的理解。持续投资于extravehicular技术的研究和开发将确保我们为未来的挑战做好准备，为未来的火星及更远的任务铺平道路。