导入表错误！请教各位大虾指点

maxtailent

我导入表的时候系统出现以下错误：
Import: Release 8.1.7.2.0 - Production on Mon Oct 18 11:03:05 2004

(c) Copyright 2000 Oracle Corporation.  All rights reserved.


Connected to: Oracle8i Enterprise Edition Release 8.1.7.2.0 - 64bit Production
With the Partitioning option
JServer Release 8.1.7.2.0 - 64bit Production

Export file created by EXPORT:V08.01.07 via conventional path

Warning: the objects were exported by KL, not by you

import done in ZHS16GBK character set and ZHS16GBK NCHAR character set
. importing KL's objects into BILLOPER
. . importing table       "MB_DETAILGP_20040101KL"
IMP-00020: long column too large for column buffer size (4)
IMP-00028: partial import of previous table rolled back: 134973 rows rolled back
Import terminated successfully with warnings.
这是怎么回事啊？
该怎么解决？谢谢各位大虾！