“凹印”用英语怎么说？

“凹印”的拼音为：āo yìn...

从溶剂浓度的角度来看, 凹印的室内换气管理是必须的.From solvent concentration point of view, gravure micyoco pissed management is necessary.凹版印刷包括照相凹版,模型压印, 铜版凹印和移印.It includes gravure, die stamping copper - plate engraving and pad printing.图为该企...