photoengraving zinc
照相凸版印刷锌
A print obtained from photoengraving.
从照相凸版上印刷出来的印刷品。
He started a press. He started photoengraving.
他安置印刷机 开始修照片
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。
A dark red resinous substance derived from various trees and used in photoengraving.
一种深红色树脂物质，从树木中提取，用于照相凸版印刷。
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