issue existing

• 存在问题

issue existing的用法和样例：

例句

1. The basic principle of programme design and the method of solving problems existing in production are discussed.
   文章论述了程序设计的基本原理和生产实践中存在问题的解决方法。
2. The classification scheme in the light of problem natures existing in the mines is applicable.
   依据矿山自身存在问题的性质的划分方案较为适用。