issue existing的用法和樣例：
例句
- The basic principle of programme design and the method of solving problems existing in production are discussed.
文章論述了程序設計的基本原理和生產(chǎn)實(shí)踐中存在問(wèn)題的解決方法。 - The classification scheme in the light of problem natures existing in the mines is applicable.
依據礦山自身存在問(wèn)題的性質(zhì)的劃分方案較為適用。
