About: http://webisa.webdatacommons.org/144082766

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	From the viewpoint of balance between the surface fraction of openings and the fiber strength, it is preferable that the spacing at the narrowest portion is from 0.05 to 8 ??m, especially from 0.1 to 5 ??m.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com