질소주입은 폭발방지를 위해서입니다.
아래 내용은 2호기 질소주입방법과 공정등입니다.
Tepco to inject nitrogen gas into the suppression chamber of reactor2 as well, “Kr-85 and Hydrogen g
fukushima-diary.com
According to the mid/long term roadmap of Tepco released on 12/25/2012, increase of Kr-85 and hydrogen gas has been observed in PCV of reactor2.
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