The invention relates to a rotary multi-phase electrical motor wherein stator teeth corresponding to one same phase are grouped on a distinct and magnetically isolated stator section. The linear motion guide unit has a retainer plate lying lengthwise of the carriage in opposition to load-carrying race to keep more than one roller running through the load-carrying race, and a binding strip to fasten the retainer plate to the carriage. The pattern file includes specifications on valid data which may be sent to or received from the EMS, such as valid data ranges, allowed actions on specific devices, and valid data values for objects for various software releases. Stabilizer struts, which also preferably have adjustable length, extend between the opposing base struts andor between the opposing leg struts to help maintain them in spaced relation. The invention furthermore relates to a cheese product, in particular in the form of a packaged commercial product, that can be processedreconstituted by the end user to give a cheese sauce according to the invention, for example by adding water and optionally by heating. The tracking device concurrently registers the three dimensional positions of the femoral and acetabular prosthetic components, along with the prosthetic joint center and the native joint center, respectively enabling alterations in three dimensional location of the leg length and offset prior to reduction of the prosthetic joint.