One strategy, which would require some coordination with the Sandcastle XSLT files, would be to use the xml:lang attribute on your XML documentation. Visual Studio 2010 allows multiple tags to remain (although you may get complaints about duplicate tags).
///
/// Gets or sets the fill size of the load operation.
///
///
/// Obtient ou définit la taille de remplissage de l'opération de chargement.
///
public int FillSize
{
get;
set;
}
Resulting output:
Gets or sets the fill size of the load operation.
Obtient ou définit la taille de remplissage de l'opération de chargement.