valuate the product full potential and to improve system stability. 4. CONCLUSION The research project for developing the motion control card for retrofitting old milling machines is an attempt for sustainable technology development. The industrial C motion control prototype system has been essfully developed and C machines have been installed for field test. The project first aims at restoring C machines at Thai Vocational Technical Colleges that require new industrial motion control cards which had been long discontinued and eventually expect its usage for retrofitting other old machines in local industry. 第 7页共7页指导教师评语外文翻译成绩: 指导教师签字: 年月日注: 1. 指导教师对译文进行评阅时应注意以下几个方面: ①翻译的外文文献与毕业设计(论文)的主题是否高度相关,并作为外文参考文献列入毕业设计(论文)的参考文献;②翻译的外文文献字数是否达到规定数量(3 000 字以上);③译文语言是否准确、通顺、具有参考价值。 2.外文原文应以附件的方式置于译文之后。