̳ ȸ ڳ õ, ̰ȣ û, ѱ õ, Ʈܻ, õũũ, ϱ õ縯б, źǥ ߴ.
1980 α ߿ ð߷ ؾϴ ұ Ȯϱ ܰ ƴ ֱ Ȯ ۵ ɿ ġϰԵ ֺ ȭ ϰ ִ.
ݽü , ȭ ̹ Ȯ꿡 η Ȱ ִ.
1970, 80 꼺 ν 츮 ϴ ȭǰ Ҿ װ, 꼺 ǰ, ǰ R&D ݽü ߱ å ĿԴ.
õÿ μ Ӹ ƴ϶, ֹΰ ٷ ư ùε Һ , ȭ Բ ִ õ ȭ 밳 ϰ ִ.
õ ȭ 밳 з ٲ ȭ ϰ, ذϱ Ͻ , 㿡 ȭΡ ǥ ȴ.
з ȭ ߸߾ ̹ η ٷο Ը ְŰ Ư 츰 ù ȭ Һ ȯ ϴ ̴.
̹ ߰ȸ Ƽ ̿ Һ ǰ Һ 귣 ü , α ùε پ ȭü , ¹ȭ ü Ͽ ϰ ߴ.
Ư ±ٸ, η°߿ ȸǼ, õҺóû Ȱ ȭ 1 ֺ Ž , 2 Ȱ ڹ м ü ȹ̴.
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