Hi Tom and Steve, Now I am clear, many thanks! zhiwei ----- Original = Message ----- From:"Tom Dagostino" <tom@xxxxxxxxxxxxx> To: ''ZHENGZHIWEI'', <zhiweizh@xxxxxxx>= ;, <weirsi@xxxxxxxxxx>, <s= i-list@xxxxxxxxxxxxx> Cc: Sent:Wed May 18 00:58:01 UTC+0800= 2011 Subject: RE: [SI-LIST]Re:[SI-LIST]Re:HowV-TtablebeenextractedforIB= ISmodel ------------------------------------------------------------------ To unsubscribe from si-list: si-list-request@xxxxxxxxxxxxx with 'unsubscribe' in the Subject field or to administer your membership from a web page, go to: //www.freelists.org/webpage/si-list For help: si-list-request@xxxxxxxxxxxxx with 'help' in the Subject field List technical documents are available at: http://www.si-list.net List archives are viewable at: //www.freelists.org/archives/si-list Old (prior to June 6, 2001) list archives are viewable at: http://www.qsl.net/wb6tpu