外文.pdf

of a a H. 120&D 4461207907 007; 3 007)in a as in in on a by A In we a as as a of a to TC LC on an of as We in of an in in a as to in TC of a of as of is as a in on a by or in to In of as in of In a on to or as a 994). In an 005) a et to at on TC o (1997) an a NC 2000) a of a on In 2004) a to of of on a of on on a of to 2001)*21, 8, 008, 885894951362008 9511920701819171, a et (2003) a of NC u (2006)a a on an 1998) a as et (2000) be to et (2000) of to a a of of it is to an TC on of or as As a it to or of or of to a of TC be LC of be TC so be to we We a is as by or or to of as in a TC in . of TC a a is to a to . of a TC et is a TC We to of an in a to is LC of TC TC of a a a a A to to It of a an to a to a a . TC of a to to a of in a In we of of be . of a . as a . of 87In we we of in TC as a in to a LC in is an be a 1a of of of is to as be to . As is in or is in (360), , be 6,d, of s of N in of in on 2002). of to as of in a is to in is of of be a a of a a we of et 2006) . be at in of to a to or is as in 5). . of TC am 330 (of of of 75 (On of 210 (of of 14 5of 0. of TC et s. (a) (b) at .1 m. TC of TC to LC of NC TC in a o.) a in (a), (b), c) is 2. (a) of to of (b) c) of to We of of of to of of ). % . TC . )91We of as a if it be LC a in a a 0 of of of an a a to a of as TC in a to to in on an I T) a 12 MB of We a an .5 ms ms TC 1(a) b) a TC 0. of a 1. et 1(a), is by of a at a .5 s, to of an In LC as an 1(b) a an s of s,to 200% of a to 2(a) b) of