ۿ õ 2013 ټ° Ž ܵ ġ ⱸ ְ(ǥ : ) 湮Ͽ Ȳ ַλ ѷ鼭 ϴ ٷڵ ݷߴ.
ְ() 1979 ְֽȸ Ͽ ݿ ̸ 34 ǰ ŷڸ ֿ켱 Ѵ١ 濵̳ Ʒ о߸ ϰ ǰ ȭϿ Ǽ ι 20% ϴ ⱸ ̴.
, ⱸ 鿭ⱸ, ⱸ 忡 Ͽ츦 LEDⱸ ̿ ģȯ ⱸ ν ϰ 2013 ǰ濵 (ڿ) 2012 ǰ濵 ǥâ (õ) ̴.
ְ() 2010 Ʈ ϳ̿ Ͽ Ʈ ϵ ϳ ⱸ Ͽ, ƽþ ô ۷ι ϰ ϰ ִ.
Ư, ⺻ Ұ ְ ǰ ̶ 屸 Ű Ͽ ڹ Ȱ ϰ ϴ κк Ͽ 꼺 ȿ âϰ ְ, 繫 ǻ ȭ ϴ ̵ âϰ, ϰ ִ.
ⱸ ߿ϱ ְ() ΰ 400 ̻, ǿž 17 ϰ ְ, ż縦 ̿ NET/NEP * Ͽ ϸ, Բ ִ ϰ ϰ ִ.
ۿ õ ߷ ȯ ģȭ Ȱ Ͽ ϱ⸦ ٶ, Ʈ ϳ ۷ι ϱ⸦ Ѵ١ ݷߴ. /αԱ