weightlessness

简明释义

英[ˈweɪtləsnəs]美[ˈweɪtləsnəs]

n. 失重；无重状态

英英释义

单词用法

同义词

反义词

例句

1.Astronauts are accustomed to the state of weightlessness.

宇航员们习惯于失重状态。

2.But their metropolis text also has the phenomenon of weightlessness on criticism.

但她们的都市文本同样也存在着批判上失重的现象。

3.I had a genuine sense of weightlessness, as if the car had taken flight.

我有一种真正的失重感，好像车在飞翔。

4.And the stress of spaceflight, combined with the negative effects of weightlessness on muscle and bone, could cause real problems.

然而来自航天的压力，再加上失重对肌肉和骨骼造成的不利影响，会导致严重的问题。

5.In the few minutes of weightlessness, passengers will be encouraged to shed their seat belts and float around.

而在几分钟的失重时间里，我们则鼓励乘客松开安全带自由飘浮。

6.And the stress of spaceflight, combined with the negative effects of weightlessness on muscle and bone, could cause real problems.

然而来自航天的压力，再加上失重对肌肉和骨骼造成的不利影响，会导致严重的问题。

7.The problem is that in weightlessness, fluids can blob up and stick to surfaces, while solids float in the air.

问题是，在失重状态下液体变成水珠浮于表面，而固体会漂浮在空中。

8.More importantly, scientists are already queuing for seats on these low-gravity space-flight services so they can collect data during a few minutes of weightlessness.

更重要的是，科学家们已经在排队争取这些低重力太空飞行服务的座位了，这样他们就可以在几分钟的失重状态下收集数据。

9.So it goes back into the air so it goes immediately to weightlessness again and then it oscillates back and forth.

反弹到空中，所以马上又变成失重状态，来回振动。

10.Many experiments in space take advantage of weightlessness 失重状态 to study physical phenomena.

许多太空实验利用失重状态来研究物理现象。

11.The feeling of weightlessness 失重状态 can be exhilarating for those who experience it during parabolic flights.

在抛物线飞行中体验到的失重状态可能让人感到兴奋。

12.Astronauts experience weightlessness 失重状态 while in orbit around the Earth.

宇航员在地球轨道上经历失重状态。

13.In a state of weightlessness 失重状态, objects float freely without the influence of gravity.

在失重状态下，物体在没有重力影响的情况下自由漂浮。

14.The sensation of weightlessness 失重状态 can be simulated in a specially designed aircraft.

在专门设计的飞机中可以模拟失重状态的感觉。

作文

The concept of weightlessness refers to the condition in which an object appears to be without weight. This phenomenon is most commonly experienced in space, where the force of gravity is significantly weaker than on Earth. Astronauts aboard the International Space Station (ISS) often describe their experience of weightlessness as both exhilarating and disorienting. They float effortlessly, moving through the station with a gentle push, which allows them to perform scientific experiments in a unique environment that cannot be replicated on Earth.Experiencing weightlessness can provide valuable insights into the effects of microgravity on the human body. For instance, researchers have observed how muscles weaken and bones lose density when exposed to prolonged periods of weightlessness. This research is crucial for understanding the health risks astronauts face during long missions to Mars or beyond. Moreover, it helps scientists develop countermeasures to mitigate these effects, ensuring that astronauts remain healthy and fit during their time in space.In addition to its scientific implications, weightlessness also captivates the imagination of many. The idea of floating freely in a boundless expanse draws people to consider the possibilities of space travel. Movies and literature often romanticize the notion of weightlessness, portraying it as a liberating experience. However, it is essential to remember that this freedom comes with its own set of challenges. For example, without the force of gravity, even simple tasks like eating and drinking become complex. Liquids do not behave as they do on Earth; they form floating blobs that must be carefully managed to avoid spills.The phenomenon of weightlessness has also inspired advancements in technology. The development of aircraft that can simulate weightlessness has allowed scientists and aspiring astronauts to experience short bursts of microgravity. These parabolic flights create an environment where passengers can float for about 20-30 seconds at a time, providing a taste of what it feels like to be in space. Such experiences are invaluable for training and preparation for actual space missions.Furthermore, weightlessness has implications beyond space exploration. It has applications in various fields, including medicine and engineering. For instance, studying the effects of weightlessness on biological systems can lead to breakthroughs in understanding certain diseases and developing innovative treatments. Engineers can also learn from the principles of weightlessness to design better structures and materials that can withstand extreme conditions.In conclusion, weightlessness is a fascinating concept that encompasses not only the physical experience of floating in space but also a wealth of scientific knowledge and technological innovation. As humanity continues to explore the cosmos, understanding weightlessness will be crucial in overcoming the challenges we face in our quest to reach new frontiers. Whether it is through the lens of science, technology, or the sheer wonder of human exploration, weightlessness remains a captivating subject that pushes the boundaries of what we know about our universe.

‘失重’这一概念是指物体似乎没有重量的状态。这种现象在太空中最为常见，在那里，重力的作用远低于地球。国际空间站（ISS）上的宇航员常常形容他们的‘失重’体验既令人兴奋又让人感到迷失方向。他们轻松漂浮，轻轻一推就能在空间站内移动，这使他们能够在一种无法在地球上复制的独特环境中进行科学实验。经历‘失重’可以提供关于微重力对人体影响的重要见解。例如，研究人员观察到，肌肉在经历长时间的‘失重’后会变弱，骨骼会失去密度。这项研究对于理解宇航员在前往火星或更远的长期任务中面临的健康风险至关重要。此外，它还帮助科学家制定对策，以减轻这些影响，确保宇航员在太空期间保持健康和适应。除了科学意义之外，‘失重’也吸引了许多人的想象力。漂浮在无边无际的空间中自由移动的想法吸引人们考虑太空旅行的可能性。电影和文学作品经常将‘失重’浪漫化，描绘其为一种解放的体验。然而，必须记住，这种自由伴随着自己的一系列挑战。例如，在没有重力的情况下，甚至简单的吃喝也变得复杂。液体不会像在地球上一样行为；它们形成漂浮的水珠，必须小心处理以避免溢出。‘失重’现象还激发了技术的进步。能够模拟‘失重’的飞机的开发使科学家和渴望成为宇航员的人能够体验短暂的微重力。这些抛物线飞行创造了一种环境，乘客可以在短短20-30秒内漂浮，提供了感受太空感觉的机会。这种体验对于训练和准备实际的太空任务是非常宝贵的。此外，‘失重’不仅限于太空探索，还在医学和工程等多个领域具有应用。例如，研究‘失重’对生物系统的影响可以导致对某些疾病的理解突破和创新治疗方法的发展。工程师也可以从‘失重’的原理中学习，以设计更好的结构和材料，以承受极端条件。总之，‘失重’是一个迷人的概念，不仅包括在太空中漂浮的身体体验，还有丰富的科学知识和技术创新。随着人类不断探索宇宙，理解‘失重’对于克服我们在追求新边界时面临的挑战至关重要。无论是通过科学、技术的视角，还是人类探索的纯粹奇观，‘失重’仍然是一个引人入胜的主题，推动着我们对宇宙的认识的界限。