外文文献.pdf

f of be to of we on as a to as so In it is to N of to On to or it r 2006 +81836884547; +F. C so is it so as of Up to as 1 is as 2 is an as 4. In to a As be in is in a is an is in be to of a is D is is to a 2is of is no is a of by a AM of to be to of to a 006 of as 3. a on an a is 3, 0 005; in 3 (2007) 371379560531, 400 006; N 2. 3. by a 1. et , 15. 61011 12. is a to or an It by an as a it is a of of On 4. by 3 (2007) 371379of a in a In to or is in is a It is to of to of is to in It be if on is it is to a 13. To be it is to of in As an 14. a a 15,is of a 16, a to of 17, we to as so 5 is a a is a A be to of A PC is an as By PI at of N et (2007) 371379 373it L to of 18a is a a to a is to be We to to a to of to s to an 5. In is by PI CL NC is on In a in a so to of s In a is an is a of of at k be 1(11)j 1;2. 11) is 8), (9), (10), (12)(13)(14)L a to a a is in to be of N i )7. by in a is if is by a AM C L be as In to a 9,20 L at k (1)is at In we to L is by a 3D so L by of or a In is L L a is (2)1, (3)is by a (4)A is 6. In 1we a is 15)so of is x;y;(6)a t, of is 0 1j x;y;(7)is as 7. of of (8)(9)F. et (10)r (k)r (k + 1)r (k + 2)CL(i+1)CL(i)6. L i)i)i)i )3 (2007) 371379to as it is to is by 0119N 3 (2007) 371379 375, is on A) B). is my;y;15my;is y;is x;y;z of is is (16)be a 3of is of )(B)8. k of et (17)of in In of is (18)a of of to or so it is so to a to In to a is Dt is at of is (20)of D AM C L of AM be of CL 9, in on is to be a of 10 of in of of by is an so as to is is to is to be is to L to 9. N so 20mm)be of on To a as 10 so , (21)p y;is a to in p;1, is in p ;0, to in is is of to of is of i be to so as 00 T T T k)x