Tcl in particular has been popular in the computer-assisted design (CAD) segment, and with such networking equipment vendors as Cisco and Nortel.
Tcl在计算机辅助设计(CAD)领域中特别流行，象Cisco和Nortel这样的联网设备供应商也都使用它。
A decision was made early on to use only open-source software, but "computer-assisted design (CAD) tools are still the biggest weakness in open-source, " says Merz.
早先项目组决定仅仅只使用开源软件，但是”计算机辅助设计软件工具仍然是开源领域的最大弱势所在“梅尔兹说道。
Objective We investigated the feasibility of using computer assisted design in double-step distraction osteogenesis in the reconstruction of mandibular segmental defects after tumor resection.
目的：探讨计算机辅助设计在定向二次牵引成骨术修复一侧下颌骨肿瘤术后缺损中的应用及效果。
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