Increasing thrust once in space could be a matter of adding more wires to the sail or making the wires longer.

而要想在空间中提高助推力，只需要给太阳帆增加更多的金属线或者释放更长的金属线。

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Once in space, ion engines steadily propel a spacecraft until it travels faster than it would have using a chemical rocket.

一旦进入太空，离子发动机将稳步推进航天器，最终达到的速度会比使用普通火箭的更高。

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Once in space, it can perform for a few months or up to several years, communicating information that could help find the signs of earthquakes.

进入太空后，它能工作几个月到几年，送回帮助发现地震踪迹的资料。

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Once in space, three of its four thruster pods malfunctioned.

CNN: Elon Musk: Our future in space depends on reusable rockets

The telescope mission has more than one Achilles' heel: it cannot be serviced by astronauts, as Hubble was, once it is in space, and it cannot be returned to Earth once it is launched.

CNN: Collins

Before joining the astronaut corps in 2004, Marshburn worked as a flight surgeon for NASA. He flew to the space station once before, in 2009, on the STS-127 space shuttle mission.

MSN: 3 new crew members report to work at space station