ų 3 ϸ 츮 ߺ ǿ ϴ ̴. ұϰ ų ִ. ġ ǰ ߺ ̴. ߰ϸ ĸ 3, 4 ٸ ̳ ̵ ̱ ް . ܰ ߰ ߿伺 ̴ ǵ ڼ ߴ.
Q. ϰ ༺ ̴Ұ 20~30 ϴ ༺ κ̾ ֱٿ ð ð 鼭 ü 뷫 60% ϰ ֽϴ. ϰ зϸ ũ , , , 帷 ֽϴ. ̶ ̿ ѵ 츦 մϴ. ° ̻ ħ 츦 ༺ ̶ θϴ.- ä (ϳ)Q. ʱ ʱ Ư ʽϴ. ְ ó ȭҷ, Ӿ, η ſ ϱ մϴ. ߰ 5 95% , ʱ Ư 3 Ǵ 4 ߰ߵǴ ʰ ϴ. Ư 3 40% , 4 5% Ĩϴ.- ̴ ǻ ȣ ()Q. ʿ ƴ ʰ ð ġḦ ִ 찡 ֱ ܰ迡 ܵǴ ߿մϴ.- ̴ ȭ⳻ ǻ (ǿ)Q. ѹ ˻縦 츮 ̱ 40 ķδ ΰǰܿ 2 ѹ ð(Ȥ ) ϰ ϰ ֱٿ ƺ ٸ ð մϴ. ༺ , ȭ, Ǵ ° Ϻ ִٸ ʿ信 1 ƾ ֽϴ.- ̴ ȭ⳻ ǻ (ǿ)
* ̴ 亯 籸߽ϴ.
= ̴ ǻ ȣ ( ), ̴ ǻ (ǿ ȭ⳻ ), ä (ϳ )
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