美国宇航局的发言人布兰迪·迪安在一封电邮中告诉石英财经网说:“我们会基于宇航员在地面训练时穿的太空服尺码来尽力预估每位宇航员的太空服尺码,某些情况下宇航员穿不同尺码的太空服进行训练。但是,宇航员位于轨道上时,对尺码的需求可能会根据微重力条件下身体发生的变化而变化。此外,没有哪个训练环境能够完全模拟出微重力条件下太空行走的状态,宇航员可能会发现自己适合的尺码在太空中发生了改变。”
Working in a spacesuit is one of the most physically demanding of an astronaut’s duties. Though they are in free-fall, moving their arms and hands inside the suit requires them to push against the pressurized internal atmosphere that keeps them alive and the protective gauntlet of the suit itself. A poorly-fitting suit would seem likely to add unnecessary difficulty to a risky activity. Already, astronauts working multi-hour shifts lose track of tools that drop off into space.
穿着太空服工作是对体力要求最高的宇航员职责之一。尽管他们处于微重力状态下,在太空服内活动胳膊和手需要承受维持生存的内部气压和太空服金属防护层的重量。不合身的太空服将可能给本就有风险的太空活动增加不必要的困难。过去就曾发生过宇航员在连续数小时工作后因体力不支而让工具失手落入太空中。
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