凹版印刷 āobǎnyìnshuā

āobǎnyìnshuā noun intaglio
Domain: Modern Chinese 现代汉语 , Subdomain: Printing , Concept:
Notes: A set of techniques in which the image is engraved into a surface sunken area holds the ink (Guoyu '凹版印刷'; Wikipedia '凹版印刷')