30 ȸǿ ڷγ19 ǰ ־ б ģȯ 깰 ϰ ִ ް ִ١ 10~30% ϰ, üùε Һ ϸ ִ١ ߴ.
鼭 Ѱ ư ο Ƿθ ô ִ ߿ δ١ ڻŷ ϴ Һ Ȱȭ ִ ϶ ߴ.
̳ ȸǿ ֹߴ.
Ǯ鼭 ã ùε ִ١ ùε ̿ϴµ շ м ȳǥ ü ϶ ߴ.
ۿ ͻð óϰ δ ̱ å ѹ ġ ̸ ִ١ Īѵ ش ̺ Ͽ ͻ ǥå ֵ ϶ ֹߴ./ȫ