About: http://webisa.webdatacommons.org/394896490

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	Very promising results have also been obtained by replacing the standard balls with ones made of silicon nitride, especially in combination with the coated cage.
http://www.w3.org/ns/prov#wasQuotedFrom	worldwidescience.org