About: energy conversion device

Premodifier: energy conversion
Head noun: device

Same concepts
http://dbpedia.org/resource/Energy_transformation

Broader concepts

label	provenance	confidence

Narrower concepts

label	provenance	confidence
fuel cell	isap:305103822	0.809737
internal combustion engine	isap:392378722	0.805076
solar cell	isap:305103896	0.770679
hydrogen fuel cell	isap:305104052	0.642027
photovoltaic	isap:81089968	0.408584
battery	isap:273465838	0.295690
background of the invention	isap:253827271	0.219174