photogravure

详细解释:n. 凹版印刷, 凹版照相
vt. 用凹版印刷复制, 用照相凹版复制

英语解释：

名词 photogravure:

printing from an intaglio plate prepared by photographic methodsan intaglio print produced by gravure同义词：gravure, heliogravure