About: http://webisa.webdatacommons.org/269307361

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	In conventional soldering work with laser or the like, however, proper determination of light radiation and other conditions needs trial-and-error methods by solder joint at much expense in time and effort.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com