<http://webisa.webdatacommons.org/262116460>	<http://www.w3.org/ns/prov#wasQuotedFrom>	<google.com.au> .
<http://webisa.webdatacommons.org/prov/44841553>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/262116460> .
<http://webisa.webdatacommons.org/262116460>	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/prov#Entity> .
<http://webisa.webdatacommons.org/262116460>	<http://www.w3.org/ns/prov#value>	"Thermal barrier rings 233 formed of a ceramic material such as boron nitride that is resistant to radiation of the arc are juxtaposed one each between each pair of adjacent segments radially inward of the corresponding spacing ring 230, which also supports the corresponding barrier ring 233." .