About: http://webisa.webdatacommons.org/377268951

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	Apart from other problems such as improving durability and output density etc., cost reduction is the most major problem for putting the PEMFC (or PEFC) into practical use.
http://www.w3.org/ns/prov#wasQuotedFrom	freshpatents.com