About: http://webisa.webdatacommons.org/159659303

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	Thus, there is a problem of not being able to improve the refrigeration efficiency and the difficulty in optimization.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com