Premodifier: chemical
Head noun: etching

Same concepts
http://dbpedia.org/resource/Etching_(disambiguation)

Narrower concepts

labelprovenanceconfidence
plasma etchingisap:4294604000.693451
laser ablationisap:3414367020.492571
etchingisap:4294603930.317927
acidisap:84746740.295047
layerisap:2241841940.214866