units 1 0 http://www.openmath.org/cdfiles/cdgroups/units.cdg This CD group contains cds describing units and dimensions dimensions1 http://www.openmath.org/cd/dimensions1.ocd units_imperial1 http://www.openmath.org/cd/units_imperial1.ocd units_metric1 http://www.openmath.org/cd/units_metric1.ocd units_ops1 http://www.openmath.org/cd/units_ops1.ocd units_siprefix1 http://www.openmath.org/cd/units_siprefix1.ocd units_sts http://www.openmath.org/cd/units_sts.ocd units_time1 http://www.openmath.org/cd/units_time1.ocd units_us1 http://www.openmath.org/cd/units_us1.ocd