traveling to space翻译

traveling to space的基本解释

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太空旅行：指人类进入太空进行探索、观测、研究或旅游等活动。

例句

There are just two hydrogen atoms per cubic centimeter on average in space, which poses no threat to spaceships traveling at low speeds.太空中平均每立方厘米只有两个氢原子，这对低速飞行的宇宙飞船不构成威胁。
They like to gather photons that have been traveling across time and space since well before Earth was born, some 4.5 billion years ago.他们喜欢收集穿越时间，从地球诞生之时——大约45亿年之前——起开始旅行的光子。
For example, to the occupants of the shuttle orbiting the Earth, it can look like they're traveling on a straight line through space.例如，对于环绕地球的航天飞机内的宇航员而言，他们似乎是以直线方式在太空中运行的。
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