zero level是什么意思

用法例句

At the same time, the author researches on automatic producing assembly list and part mark on 2-D drawing through Proe/Engineer software, and brings forward the method to make a assembly list swiftly and truly.

描述了此软件表格的制作过程,同时探讨了二维装配图明细表以及零件标示的智能生成,指出了快速而准确的明细表绘制办法。