Hello Barbara,
For China, the Beijing 1954 and Xi'an 1980 datum would be good suspects.  They are both present in MapInfo v8.0. 
 
Assuming the datum is one of those, here is a PRJ entry (someone please correct me if I have cobbled these together wrong) for two variations of the system:
 
"--- China Lambert Conformal Conic---"
"China (Beijing54)", 3, 154, 7, 100, 10, 25, 47, 0, 0  
"China (Xi'an80)", 3, 1017, 7, 100, 10, 25, 47, 0, 0


Regards,
Sam Knight

Applications Specialist
Blue Marble Geographics

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----------------------- Original Message -----------------------
  
From: "Barbara H. Carroll" <[EMAIL PROTECTED]>
Date: Thu, 11 May 2006 09:20:39 -0700
Subject: [MI-L] Chinese Lambert Conformal Conic Projections - mapinfo.prj file
  

Hi

Does anyone have the details for datums and projections used in Chinese maps? I have downloaded some of the CIESIN data and it’s in Lambert Conformal Conic projection. The readme file includes the following:

COORDINATE SYSTEM

All coverages are in LAMBERT CONFORMAL CONIC PROJECTION with

two standard parallel latitudes: 25.00N and 47.00N. The central meridian is

110.00E and the latitude of projection's origin is 10.00N. The units are

meters.

If anyone has the details to edit the mapinfo.prj file it would be very greatly appreciated.
Thanks!
Barbara Carroll

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