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ֹȭչ һȭ ȭչ Ǵ ع ¿ 谡 ־ ϻ緮 dz ö ַ Ѵ.
ð 0.12ppm ̸̻ Ǻ, 0.3ppm ̸̻ 溸, 0.5ppm ̸̻ ߴ 溸 3ܰ ߷ɵȴ.
Ǻ 溸 ߷ϸ ߱ ̿ϰ ǿȰ ؾ ϸ Ư ڳ , ȣ⡤ ȯڴ ǿȰ ؾ Ѵ.
ô κ ù ǰ ظ ּȭϱ ̼ ˸ ȣ ǽð Ȳ 溸߷ ȫϰ ִ.
ƿ ù ھȳ Ȳ ϰ ִ.
ȳ ϴ ù ȯ ûϸ ȴ.
ǽð ڷ ڸ ȯ Ȩ 츮 Ȯ ִ.
õ ڴ ӵǴ Բ Ǻ ߷ ǹǷ ùε鲲 ൿ ǰ ñ ٶ١ ߴ.
̱ yundha@hanmail.net
2026.02.10(ȭ) 00:02













