这就是为什么在火箭和宇宙飞船里，失重的宇航员和物体会在空中漂浮。
They are in a condition of weightlessness. And this is why, in rockets and space capsules, weightless astronauts and objects float about in the air.
当飞机以抛物线飞行并暂时抵消部分重力时，学员将能体验到近似失重的状态。
Participants undergo near-weightlessness as the plane is flown in parabolic maneuvers that create temporary reduced gravity.
在失重的环境下生存会让我们的身体产生奇怪的现象；我们的整个生理机能毕竟还是以重力为前提的。
Living in a weightless environment does curious things to the body; after all, our entire physiology evolved in the presence of gravity.
这些令人惊讶的笔有了不起的历史，被批准在太空试用，因为它们在太空失重的情况下或以任何角度都可以轻松自如地使用。
These amazing pens have a great history of being approved for use in space, since they effortlessly write in the gravity free vacuum of space, and at any Angle.
宇航员表明上看起来是失重的，那是因为他们在不停地往地球方向做自由落体运动，而他们在水平方向上的运动又使他们保持着漂浮的状态。
Astronauts look weightless because they are in continuous freefall towards the Earth, staying aloft because of their horizontal motion.
潜入水中，会使你有一种失重的感觉，同时你还可以自由地活动。
Then there's the feeling of weightlessness and the freedom of movement associated with diving.
双子座计划使宇航员了解了长期飞行中辐射的危害和失重的影响。
Gemini let astronauts learn about the dangers of radiation and the effects of being weightless during long flights.
还好有景师兄在旁边帮忙，现在已经慢慢适应失重的感觉，也越来越感受到失重的乐趣。
My big brother Jing Haipeng has really helped me adjust to life up here, and I am slowly getting used to the feeling of zero gravity, and, you know what - I'm starting to enjoy it more and more.
馆中有一个失重离心机，让旅游者体验失重的感觉，就像宇航员在太空遨游时的感受一样。
There is a gravity-defying centrifuge to give visitors a ride that creates the same sense of weightlessness that space astronauts feel during space travel.
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。
In the few minutes of weightlessness, passengers will be encouraged to shed their seat belts and float around.
1999年，NASA(美国航空航天局)将瓢虫和蚜虫带上了航天飞机以测试它们在失重状态下的行动。
In 1999, NASA sent ladybugs and aphids up in the space shuttle to test their movements in zero gravity.
无一例外地，这些人都体验到了失重和身体被纵向拉伸的感觉。
Uniformly, these people experienced weightlessness and the sensation that their bodies were being stretched lengthwise.
史蒂芬·霍金这位究其一生破译宇宙奥秘、甚至体验过失重状态的英国科学家，正敦促人类为了自身利益继续进行太空探索。
Stephen Hawking, who spent his career decoding the universe and even experienced weightlessness, is urging the continuation of space exploration - for humanity's sake.
结论此结果为中国航天医学和生理学特别是模拟失重或微重力条件下的肌肉功能评定提供了一个新的思路。
Conclusion The results provided a reference for strength evaluations in space medicine and space physiology, especially under simulated weightlessness and microgravity.
科学家还不清楚高钙浓度是由于失重环境下宇航员的骨质流失还是另有其因。
Scientists do not yet know if the high calcium concentration is due to bone loss, a consequence of living in a zero-gravity environment, or other factors.
该设备模拟诸如禁闭，压力和星际旅行带来的疲劳等状态——唯一没有模拟失重状态。
The facility simulated confinement, stress and fatigue of interplanetary travel - the only thing not simulated was weightlessness.
这对来自纽约的夫妇举行的婚礼被组织方称为世界第一个失重婚礼。
The New York-based couple married in what organizers say was the world's first zero-gravity wedding.
届时，新郎诺赫和新娘艾琳将乘坐一架经特殊改装的飞机飞到11公里高空，再作15次俯冲到7.3公里高度，从而感受30秒失重状态，并在此间宣读结婚誓言。
Noah Fulmor and Erin Finnegan will exchange vows on a specially-adapted plane, which performs 15 swoops from 11km to 7.3km to allow 30 seconds of weightlessness.
电影阿波罗13号中的所有失重场景都是在这里拍摄的。
All of the zero-gravity scenes in the movie Apollo 13 were filmed during these flights.
飞行中的宇航员必须适应失重状态。
科学家们一直都知道人类在太空的失重状态下工作是很不容易的。
Scientists always knew it would not be easy for humans to work in the weightlessness of space.
“当然，我们处在失重状态，所以，你头顶的淋浴头是没有用处的，”帕耶特女士说。
"Of course, we're in weightlessness, so a shower head with water dripping on top of your head would not work," Ms. Payette says.
他热爱深海潜水，水下的失重状态和千奇百怪的生命体给了他最接近漫游外太空的感觉。
He came closest to visiting alien worlds through his love of deep-sea diving, its weightlessness and strange life forms.
游泳池能模拟国际空间站的失重状态，但不是月球的重力——地球的六分之一。
A swimming pool can simulate the weightlessness of the ISS but not the moon's gravity-one sixth of Earth's.
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。
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.
该技巧面临的挑战在于一个开发团队的开发人员的应用方法不一致，并且很容易错失重构的机会。
The challenges of this technique are that it's often inconsistently applied among developers on a team, and that it can be easy to miss opportunities for refactoring.
轻松享受的游泳的基础是平衡，或者说水中的失重感。
The foundation skill of effortless and enjoyable swimming is balance-or feeling 'weightless' in the water.
轻松享受的游泳的基础是平衡，或者说水中的失重感。
The foundation skill of effortless and enjoyable swimming is balance-or feeling 'weightless' in the water.
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