ʸ ٸ ϴ ؼ ˾ƺ .
տ ̾߱ߴ ó (70~80%) ȴٸ ð żڿ ŵڰ ´. ¥ ְ ΰ ϴ 뿡 .
ð , ܱ ߰ ߵ ؾ Ѵ. , ߵ, ܱ ȣϸ, ̿ϴ , ܱ ȣѴ.
, ߵ, ܱ ż, ŵڰ Ͽ , ݿ ϸ, , ܱ ÿ Ѵ. Ư ϴ ؼ Ͻúҵ , ܱ 1 ̻ ϱ Ѵ.
10% ߵ 40% ܱ 50%̸ ߵ ÿ 10% ܱ 90% Ѵ.
ż 10% ź, ؾ ϸ, ÿ 嵵 . ŵ ź, , Ӵ༭纻, Ǹ, ڵ, 纻 ־ ϸ, 븮 ߱ ΰ, ΰ, , 븮νź, 纻 ʿϴ.
Ǹ ִ ƴ϶ ڸ Ȯ ִ 뵵 ȰǸ, ʿ κ ؼ żο ϴ ͵ .
ҿ ϰ Ǹ, γ Ȯؾ ϴµ ε(,ǹ), ̿ȹ(), ߱ ¹ Ȯ ؾ Ѵ.
ε(,ǹ) , ǿ ؼ , 庸 ε 켱ϸ, ؼ ε , 켱Ѵ.
Ȯ ̻ Ӵ༭, Ǹ, ź ȮϿ ´ üũ Ѵ. Ŀ Ȯ ༭ ϰ ŵڴ ߰ Ȯ ۼѴ.
100¥ 2, 3 ̻ ̰ ⺸ õ ݾ Ǵ 찡 .
100¥ ǹ żڴ õ ݾ ش ٴ ̶ ϰ ; , ŵڵ õ Ƽ ڰ DZ⺸ٴ ִ ߰ ߰ε ָ Դ´.
ڽ ڸ ̻ Ȱڴ Ȥ ڴٸ, ݾ״ ݾ ƴ϶ ϰ ϰ ͼ ϴ ùٸ ̴. ߵ, ܱݿ ؼ ̾߱⸦ غڴ.