Translations:Units/30/en

Because of hypothesis one, it is possible and relevant to define an unit system. An unit system applies to: According Guide for the Use of the International System of Units (SI) from NIST, they are 7 physical base units. We chose to express a unit system in terms of these 7 base units.
 * a running FreeCAD instance into which you are working
 * or it may also apply globally to the content of an input file