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  • gochangkorea.co.kr/%ec%8b%9c%ec%9e%a5-%ec%a1%b0%ec%82%ac/673973/%ea%b8%80%eb%a1%9c%eb%b2%8c-ndir-co2-%ec%84%bc%ec%84%9c-%ec%8b%9c%ec%9e%a5-%ec%a0%90%ec%9c%a0%ec%9c%a8-%ec%84%b1%ec%9e%a5-%ec%a0%84%eb%a7%9d-2021-%ec%98%88%ec%b8%a1-2021-2026-%ec%82%b0%ec%97%85/ (port 80)