About: http://webisa.webdatacommons.org/106313260

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	However, there is a limit in reducing the diameter of an electron beam because of the capability of electron gun and the structure of focussing system.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com.au