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[= ] 縮 ؾϴ ȭ ֹε οǾ
10 ()11 û ȯ
)ѱؾȯ溸ȣ߾ȸ )йȸ Ǻġ
ȯ к 뿡 ؾ
, յ ܷ 뷮 縦 ǽϿ..
(3), ܵ (7), Ϲ(18) ϸ,
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ȭ ҿ䱸 bod 10ppm ϸ, , ,
, ö ǽ ħ̴.
)ѱؾȯ溸ȣ߾ȸ ϼóü ϼóɷ "1 50 ̻,
ü ․ ؾ ϴ
ʿ ü̶ .
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