n.照相雕刻术；照相制版；照相凸版
Any of various photomechanical or photoengraving methods. 照相制版术照相工艺或照相制版的方法
A special lightweight alloy used for relief etching in photoengraving. 中义一种用来凸显照像凹版蚀刻效果的特殊合金。
It attacks most metals and is used for etching steel and photoengraving. 能与大多数金属起作用,用于蚀刻钢材和光刻。
Serveral of commonly used methods are photoprinting, photoengraving, mechnical engraving, and stencil. 通常所采用的几种储存方法是：影印法、照相蚀刻、机械雕刻和模板。
APPLICATION: Suitable for sterilization, photoengraving, water treatment, mediccal treatment and breeding. 用途：适用于杀菌、光刻、水处理、医疗、育种等领域。
