About: http://webisa.webdatacommons.org/432116161

Property	Value
http://www.w3.org/1999/02/22-rdf-syntax-ns#type	http://www.w3.org/ns/prov#Entity
http://www.w3.org/ns/prov#value	motion of the spindle produce a resultant compound motion with spiral displacement of the work relative to the grinding wheel or other tool when the speed ratios of the driving motors are set at appropriate speed ratios.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com