315Vol.31No.5200210JILINFORESTRYSCIENCEANDTECHNOLOGYOct.2002:1005-7129(2002)05-0053-02:TU721:B(,137000):2002-04-10:(1960-),,,,.,,,1111,112,113,,114,,221121111,,,21112,,,,21113,,21114(35d),,,,35©1995-2003TsinghuaTongfangOpticalDiscCo.,Ltd.Allrightsreserved.21221211,21212,,,,213,,,(),,,33113111131112312,,,,,,313(),,314,,,,,,,,,,315ISO9000ISO9000,,,,,45©1995-2003TsinghuaTongfangOpticalDiscCo.,Ltd.Allrightsreserved.