Jisho

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Noun
1. anechoic chamber; anechoic room
Wikipedia definition
2. Anechoic chamberAn anechoic chamber (an-echoic meaning non-echoing or echo-free) is a room designed to stop reflections of either sound or electromagnetic waves. They are also insulated from exterior sources of noise. The combination of both aspects means they simulate a quiet open-space of infinite dimension, which is useful when exterior influences would otherwise give false results.
Read “Anechoic chamber” on English Wikipedia
Read “無響室” on Japanese Wikipedia
Read “Anechoic chamber” on DBpedia

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