一、复制之前今年九月沈社长访问苏联时，苏联科学编图社赠送我社全开网线胶片一套，并送ΦT-30和31号感光片两筒作复制之用。十月，苏联专家Л.C加拉耶夫斯卡雅来我社作“地图减色印刷术”的报告，把网线胶片的应用效果和复制方法作了详细的介绍。同时我社制版工作中，亦急需大尺寸的网线应用，因此，指示我社照相车间准备复制苏联全开网线胶片工作。 First, before the copy In September this year, Shen president visited the Soviet Union, the Soviet science editorial agency donated a full set of open network I film and send ΦT-30 and No. 31 photosensitive film two tubes for copying purposes. In October, the Soviet expert Л.C Gallayevskaya came to our company to make a report on “map subtractive printing”, giving a detailed introduction of the application effects and copying methods of network film. At the same time, in our work on plate making, there is an urgent need for a large-sized network cable application. Therefore, we are instructed to make a photocopy of the Soviet Union’s full-opening network film at our photography workshop.