To test whether artificial gravity can counteract such muscle wasting, researchers subjected 15 healthy men to a zero-gravity simulation.
为了测验人造重力是否能抵消肌肉流失,研究人员对15名健康男子进行了零重力模拟。
They were sent up with early space flights to see how human cells coped with zero gravity and exposed to radiation to test the effects of nuclear weapons.
这些细胞随着早期的航天飞行被送上太空,用以观察人类细胞在失重的状态下如何存活,并将它们暴露在辐射中用以测试核武器的影响。
In 1999, NASA sent ladybugs and aphids up in the space shuttle to test their movements in zero gravity.
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。
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