About: proton exchange membrane fuel

Premodifier: proton exchange membrane
Head noun: fuel

Same concepts

Broader concepts

label	provenance	confidence
electrochemical cell	isap:179686617	0.865629
electrochemical devices	isap:8132798	0.778054
fuel cell	isap:179686616	0.662850
type of fuel cell	isap:171368132	0.654447

Narrower concepts

label	provenance	confidence