ISe= (1-S,ee 1-Sr.e 49 1-Sle S,-S,=r.e J(pL+p22） SETETO ( ) ( ) ( ) 22 11 22 11 11 2 11 11 1 1 j j j j j j + + - G - G = L L j L j L j j S e S e e S e ( ) ( ) 22 22 11 2 11 11 1 1 j j j j + - G - G = L L j L j L j S e S e e S ( ) ( ) ( ) 22 22 22 2 11 2 11 11 j +j j +j j +j - G = G - G L L L j L j L j L S S e e S e ( ) L j L S e j +j = G 22 11