what is an airlock in space?
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an airtight room with two entrances that allows an astronaut to go on a spacewalk without letting the air out of the spacecraft. Sentences: Astronauts get dressed for their spacewalks in an airlock on the space station. Houses in cold places have an airlock so that cold air doesn't get into the house.
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Answer:
an airtight room with two entrances that allows an astronaut to go on a spacewalk without letting the air out of the spacecraft. Sentences: Astronauts get dressed for their spacewalks in an airlock on the space station. Houses in cold places have an airlock so that cold air doesn't get into the house.
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