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Astronauts in flight must adjust to weightlessness.
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宇航员在飞行中必须适应失重状态。 |
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Astronauts in flight must adjust to weightlessness.
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宇航员在飞行中得适应失重状态。 |
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Astronauts must have the most rigorous training .
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宇航员必须接受专为他们制定的最严格的训练. |
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Astronauts will also test new safety procedures in the wake of the 2003 Columbia disaster.
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由于2003年的哥伦比亚号惨剧,宇航员们也将测试新的安全程序。 |
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Astronauts will also test new safety procedures in the wake of the two thousand three Columbia Disaster.
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宇航员还将测试新的安全程序,继2003年哥伦比亚灾难之后。 |
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Astronomers are a resourceful lot, however, and not much given to brooding over what they might have observed if this troublesome interstellar substance did not get in the way.
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天文学家有很多的手段,但是仍然对如果没有挡在途中的讨厌的干扰会观察到什么念念不忘。 |
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Astronomers are considering changing what they call Pluto.
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天文学家正考虑更改冥王星的名字。 |
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Astronomers ascribed them to thermonuclear fusion of hydrogen or helium or to the sudden accretion of matter onto the star.
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天文学家因此可将其归因于氢或氦的热核融合反应,或是有物质突然被星体吸附而产生的。 |
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Astronomers assume that it interacts only by means of gravitation, the weakest of all the known forces of nature.
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天文学家假设,暗物质仅参与重力交互作用,重力是自然界中已知最弱的一种力。 |
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Astronomers bave been able to classify stars according to colour.
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天文学家能够按照颜色把星星分类。 |
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Astronomers believe the star's magnetic field caused the outburst, but do not understand how.
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天文学家认为,这种星球的磁场导致了爆炸的发生,但是,他们不明白是如何发生的。 |