外文原文.pdf

009 - 12, 71000, a of in As a be as a is a of by A is of a a a of of of of of a to an is by of of of in a of a of a to of to an to an 1. is of 2983, 3 a of to of a is to of by as of is an it 456. 9/$2009 a to an it is to in A of is of of by An of a is of A is a 78. is a as an to a at in a is in 1. a of on of of of it a of on F on of a of in is to ) of of of or in of by F 7,2010 2:05:20 (1)d ed of of ) of ) of ) by of as to of of of so 8910. by a a as by . an an an an an is an is by , is by . of 2) c ) of of in of of or in F of to 8by or 8as an of of as so be by so of so of so 8910of to or in 1. is is of a 27. an of is F 7,2010 2:05:20 h ) va 4 l : ph 3 be a an an 910. of be 4. by , by . 4). -+l( b ) e c) , )s;m of 2 in so of as a be 8910of as by . by , by , B , by of to an is A B as ) an an ) an an I ) an an ) an an ) an an of to F 7,2010 2:05:20 F N is by an (N,c,v), is a a c is a v= c(N) is c, c,v) is a of . A it be by an (N,C,V)=N,i) , (i=1,2,. n) is 345of in a of or be 45F of is of of : A a is a is by a of in : of a is is I in : Vi,j=1,2,. ,n,N i N j C j v j J = . 1 1 1 c,V Vi j= is as ) is ) 5863) of is A o P c is an A P = A, P . lP IA is of a x, y, yyx,y, Vx,yyx, y, yyx,Y, yyx,y,vx,yyx,y, vx,yyx,y, vx,yyX,1,x= 1;x =0 x %,x0x%,x0x,x E O,1,x=l;x =0x,x E O,I,x =1;B- x =0X,l,A B P T M E H C of a a I is a of x,