non-numerical problem meaning in English

非数值问题

Moreover , previous study has also shown that mec has the ability in solving successfully the non - numerical problem , such as tsp , job - shop and dynamic modeling of system , etc . mec has been used in image analysis area , and attained the better results . a preliminary integrated system has already been established for mec
Mec还成功地解决了一些非数值优化问题，如tsp 、 job - shop 、系统动态建模等，此外， mec也已被用于图像分析中，取得了较好的结果，所有这些工作已经为mec建立了一个初步完整的体系。