That leaves the United States dependent on Russia to fly astronauts to the station.

这使美国不得不依赖俄罗斯将其宇航员送往空间站。

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The results show that the major source of electron and ion production at Zhongshan Station is almost completely dependent on particles precipitated from the magnetosphere.

结果表明，冬季中山站电离层内的电离生成主要取决于从磁层沉降的粒子。

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The us is already dependent on Russia to ferry astronauts to the International space Station after retiring its fleet of space shuttles.

在航天飞机退役之后，美国现在靠俄国向国际空间站运送宇航员。

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Right now, NASA is dependent on Russia for manned flights to the International Space Station until a new manned program is completed.

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The most politically controversial part of the plan was the proposal to make American astronauts dependent on pricey Russian launch vehicles to get to the international space station, at least until U.S. entrepreneurs could come up with a low-cost alternative means of transit.

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