1、
i passed from checkpoint to checkpoint, like a space traveler maneuvering through airlocks .
我通过一个又一个检查站，就像太空人通过一个个气闸。
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2、
dedicated entry and exit airlocks for introducing and removing the al canister.
专用的入口和出口气闸，用于引入和取出铝听。
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3、
4、
at his suggestion, a wide assortment of provisions was placed in the airlocks ;
按他的建议，一系列各种各样的物资放置到了气密舱；
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5、
