希望号实验舱将扩展空间站的工作空间，并且让宇航员将实验曝露在真空空间中。
The Kibo module will expand work space on the station and allow astronauts to expose experiments to the vacuum of space.
这样，作者将给出扭真空空间和扭余真空空间的概念，其定义类似于非扭的情形。
Then the author is able to define thespace of covacuaand thespace of vacua in the same way as in the untwisted case.
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