In Britain postcodes and Ordnance Survey map data at present cannot be freely used for commercial purposes-a source of loud complaints from businesses and activists.
These and many other commercial free data sources use the spherical Mercator data projection (identified by European Petroleum Survey Group [EPSG] code 900913).
这二者以及很多其他的商业的免费数据源都会使用球形的 Mercator 数据投影（由 European Petroleum Survey Group [EPSG] code 900913 标识）。
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Our team carried out a more detailed customer survey, and on the basis of that, our production company was able to create a commercial that was more accurately targeted.