A rescue plan could be achieved by sending an unmanned module to the space station.

营救计划可以通过向空间站发送一个无人舱来完成。

《柯林斯英汉双解大词典》

Japan has launched a new type of unmanned rocket and cargo module to carry supplies to the International Space Station.

日本发射了新型无人火箭和货物舱，向国际空间站输送补给。

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For 30 years, NASA has flown the Shuttle, built and maintained the International Space Station, and overseen unmanned scientific probes.

三十多年来，美国宇航局都发射航天飞机，建造和维护国际航天站，及管理无人科学探索。

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In August, a Soyuz failure on an unmanned mission to resupply the space station led to a six-week suspension of flights.

BBC: Soyuz back in service after failed launch

The scheduled trip comes just a little over four months after the project successfully completed a docking test by the unmanned private spacecraft with the International Space Station.

ENGADGET: SpaceX Dragon capsule launch gets go signal from NASA Alt

The unmanned Dragon spacecraft cast off from the International Space Station early Thursday morning and survived a fiery re-entry through Earth's atmosphere to make an apparently flawless splashdown in the Pacific Ocean off the coast of Baja California.

MSN: SpaceX showered with praise for success of Dragon mission