甚至好莱坞也来凑过热闹，用这些飞行模式把失重状态搬上银幕。
Even Hollywood has gotten into the act, using these flights to depict weightlessness on the silver screen.
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.
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.
航天飞行实践证明失重对血液循环系统有明显的影响，可引起心血管功能失调和航天贫血症。
It is demonstrated in flight that weightlessness significantly affects the blood circulatory system and may cause cardiovascular dysfunction and anemia of spaceflight.
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.
运动员的腾空和宇航员在轨道上的飞行都是处于失重状态。
When a sportsman rises high into the air and an astronaut travels around the orbit, they will be in weightlessness.
飞行中的宇航员必须适应失重状态。
最近的宇宙飞行表明，人体需要在宇宙飞船中进行专门训练才能适应失重的情况。
Recent space travels have shown that the body needs special exercise in a spaceship to suit the weightless conditions.
宇航员在飞行中必须适应失重状态。
结论D CG可用于评价整个失重飞机飞行期间心脏电活动的改变。
Conclusion DCG could be used to evaluate the changes of cardiac electric activity during the whole parabolic flight.
但是，引力绝不会全然消失。在轨道中飞行的宇航员，有失重的感觉，或失重状态的感觉。但是，微小的引力使他的飞船保持在轨道里。
But gravity never disappears completely. An astronaut in orbit feels weightless, or zero gravity. (2) But a tiny amount of gravity is keeping his ship in orbit.
但是，引力绝不会全然消失。在轨道中飞行的宇航员，有失重的感觉，或失重状态的感觉。但是，微小的引力使他的飞船保持在轨道里。
But gravity never disappears completely. An astronaut in orbit feels weightless, or zero gravity. (2) But a tiny amount of gravity is keeping his ship in orbit.
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