print

The importance and the way of improving the recognizing power of blueprinting paper;

提高晒图纸分辨力的意义和方法

This article also intrduces the methods of properly in-creasing the speed of blueprinting paper,strictly controlling the application of.

目前国产重氮氨熏晒图纸普遍存在显影慢，晒图与熏图不能同步，线条色泽不够鲜艳及分辨率低等弊病。

The design of electrical system of type SJYZ-L2000 blueprint machine;

SJYZ-L2000型冷光晒图机电气控制系统的研制

The application and property of polyethylene terephthalate(PET) piece in high speed blueprint machine were introduced.

介绍PET(聚对苯二甲酸乙二醇酯)的性能特点及其在高速晒图机上的应用实例。