for your information, my situation is as follows:
2004.06 File No. Hongkong case
2004.12 Medical Exam notice
2005.01 Medical Examed and landing fee paid
2005.03 Status changed to "DM" = Decision Made
2005.05-06 I think can get LP
2005.07 Visa pick up in HK
2006.01 Must be landing
+++++++++++++++++++++++++++++
FN: File Number 档案号,
ME: medical examination 体检
MER: medical examination result 体检结果
DM: decision made 结论已做出
MER+DM: 收到体检结果并做出结论
PL: Pickup letter 取签信