In this paper, direct platemaking technology is briefed, frequency modulated half tone dot technology (principles, characters and technologics) is emphasized.
本文简述了直接制版技术，着重叙述了调频网点技术，包括原理、特点及技术。
2
Anhydrous plate wash An anhydrous alcohol, a water-free alcohol used in lithographic deep-etch platemaking to wash the plate before applying tie lacquer image base.
无水洗版液是无水酒精。在制深蚀版时用来清洗版面，然后在印纹基样上涂上假漆。
3
As a bridge between platemaking and printing, printing down plays an important role in the replication process. It's quality impacts on the printing quality and printing efficiency.