The initial design development stage wherein, at first, it is certain that errors will be discovered which will require design changes. It is in this period that design aids, emulation techniques, and supportive design techniques are essential to quick de
初始设计开发阶段, 首先必须发现可能存在的错误, 并作相应的设计修改。正是在这个时期中, 设计辅助程序、仿真技术和设计支援技术对于快速设计都是必不可少的。
She worked hard in emulation of her elder sister.
她努力赶超姐姐。
