circuit schematic drawing meaning in Chinese

电路原理图

The main topic of the thesis is talking about the security services of x - pdm , the realization of the security scheme , and the automatic understanding for electronic circuit schematic drawings , which is the key technology of document management in x - pdm
本文的主要内容涉及x - pdm系统的安全服务及其实现方案的设计，以及图档管理关键技术之电子电路原理图自动输入与理解系统的研究。