problems of townization

• 城镇化问题

problems of townization的用法和样例：

例句

1. Wire frames and bounding boxes solve problems of object visibility.
   线框和边框解决了对象的可视化问题。
2. This paper concerns nonsmooth semidefinite programming problems.
   摘要首次考虑了非光滑半定规化问题。