an extra-vehicular activity
... 注意：载人飞船manned spaceship/spacecraft 出舱活动an extra-vehicular activity 空间站space station ...
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an extra-vehicular activity
舱外活动
以上为机器翻译结果，长、整句建议使用 人工翻译 。
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On June 3, 1964, Edward White became the first American astronaut to perform a spacewalk, otherwise known as an extra-vehicular activity (EVA), going outside this Gemini iv capsule for 20 minutes.
6月3日，1964年，爱德华·怀特成为第一位美国宇航员执行太空行走，否则作为舱外活动(EVA的已知)，外面双子座四胶囊去20分钟。
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