Normalize notes for Grid length...?

[amilan17]

Do these two notes mean the same thing? If so, which one is better? 

28	Grid length is in units of 10-3 m at the latitude specified by LaD.
29	Grid lengths are in units of 10–3 m, at the latitude specified by the standard parallel.

found in:

• GRIB2_Template_3_10_GridDefinitionTemplate_en.csv:Mercator,65-68,Di - longitudinal direction grid length,(see Note 2),28,,,Operational
• GRIB2_Template_3_10_GridDefinitionTemplate_en.csv:Mercator,69-72,Dj - latitudinal direction grid length,(see Note 2),28,,,Operational
• GRIB2_Template_3_20_GridDefinitionTemplate_en.csv:polar stereographic projection,56-59,Dx - x-direction grid length,(see Note 3),28,,,Operational
• GRIB2_Template_3_20_GridDefinitionTemplate_en.csv:polar stereographic projection,60-63,Dy - y-direction grid length,(see Note 3),28,,,Operational
• GRIB2_Template_3_30_GridDefinitionTemplate_en.csv:Lambert conformal,56-59,Dx - x-direction grid length,(see Note 1),28,,,Operational
• GRIB2_Template_3_30_GridDefinitionTemplate_en.csv:Lambert conformal,60-63,Dy - y-direction grid length,(see Note 1),28,,,Operational
• GRIB2_Template_3_31_GridDefinitionTemplate_en.csv:Albers equal area,56-59,Dx - x-direction grid length,(see Note 1),28,,,Operational
• GRIB2_Template_3_31_GridDefinitionTemplate_en.csv:Albers equal area,60-63,Dy - y-direction grid length,(see Note 1),28,,,Operational

and 

• GRIB2_Template_3_140_GridDefinitionTemplate_en.csv:Lambert azimuthal equal area projection,56-59,Dx - x-direction grid length,(see Note),29,,,Operational
• GRIB2_Template_3_140_GridDefinitionTemplate_en.csv:Lambert azimuthal equal area projection,60-63,Dy - y-direction grid length,(see Note),29,,,Operational

Originally posted by @amilan17 in #118 (comment)