2020年MPA考试考前英语外刊阅读（八）

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Two Nasa astronauts have embarked on the first all-female space walk in a historic first. Christina Koch and Jessica Meir floated feet-first out of the International Space Station’s Quest airlock on Friday lunchtime UK time, tasked with replacing a failed power control unit.

The spacewalk, known as an extra-vehicular activity (EVA) in astronaut jargon, took place seven months after the original planned date for an all-female outing, which had to be scrapped because the ISS had only one medium-sized spacesuit on board. The agency sent up a second medium spacesuit in October. Koch, who has been on the ISS since March, was first out of the hatch, followed by Meir, carrying a tool bag.

During the spacewalk, expected to last five and a half hours, the astronauts will remain attached to handrails on the exterior of the ISS using harnesses and pairs of metal carabiners. These are sequentially clipped and unclipped to ensure that the astronauts cannot float off into space. On Tuesday, Nasa unveiled the prototype for a new spacesuit that could be worn by the next crew, expected to include a woman, to land on the moon.

文本选自：The Guardian(卫报)

作者：Hannah Devlin

原文标题：Nasa astronauts begin first ever all-female spacewalk

参考翻译

美国国家航空航天局的两名宇航员进行了历史性的首次全女性太空行走。英国时间周五午餐时间，克里斯蒂娜•科赫和杰西卡•梅尔以双脚着地的方式从国际空间站的“探索密闭舱”中出来，他们的任务是更换出故障的动力控制装置(电池)。

这次太空行走，在宇航员的行话中被称为舱外活动(EVA)，是在原定的全员女性太空行走的7个月后进行的，但却因为ISS只有一套中号的航天服而取消。该机构于10月发射了第二套中型太空服。自3月以来一直在国际空间站的科赫第一个走出舱门，随后是提着工具袋的梅尔。

在这次预计将持续五个半小时的太空行走中，宇航员们将使用安全带和一副金属扣锁固定在国际空间站外部的扶手上。在宇航员移动过程中，这些防护装置交替解锁，以确保宇航员不会飘向太空。周二，美国国家航空航天局(Nasa)公布了一款新型宇航服的原型，预计将有一名女性登上月球。

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