送交者: xj 于 2005-8-28, 22:20:08:
回答: Oops, too many errors. Here is the revised version. 由 Latino2 于 2005-8-28, 19:47:36:
the keys are references. If you can find any concrete examples on the geotextile, espcially those in the US, the letter will be much better.
Somebody in the geo field may be a better candidate to write this letter.