쒿 슼 튻ꆢ뇠훆틀뻝벰뇠훆쒿뗄.............................. 1 1.1 뇠훆틀뻝 ...................................... 1 1. 2 뇠훆쒿뗄 ...................................... 1 뛾ꆢ릤돌룅뿶........................................ 1 죽ꆢ뚬쪩릤돌볆뮮.................................... 2 3.1 쟅몭릤돌 ...................................... 2 3.2 쇙붨릤돌 ...................................... 3 쯄ꆢ뚬벾쪩릤뿘훆쒿뇪................................ 3 컥ꆢ뚬웚쪩릤ퟩ횯낲업