选题与表达常有人问：我也想动笔，你们需要什么样的文章？回答是：凡是广大读者需要的，对于推进ＣＡＤ应洱工程有助益的，都欢迎。我们的读者，不论是用户、开发者，还是厂商，产要从事ＣＡＤ工作，都会遇到一系列问题。比如，ＣＡＤ用户（或潜在用户）占读者的大多数，... Selected topics and expressions often asked: I also want to write, what kind of article do you need? The answer is: All readers need, to promote the CAD Ying project is helpful, are welcome. Our readers, whether users, developers, or manufacturers, want to engage in CAD work, they will encounter a series of problems. For example, CAD users (or potential users) account for the majority of readers, ...