問もん題だい領りょう域いき

noun

problem area; area of concern

Refers to a domain, field, or aspect where problems exist or are likely to arise. Often used in academic, technical, or analytical contexts.

• この研けん究きゅうの主おもな問もん題だい領りょう域いきはデータの信しん頼らい性せいです。

  The main problem area of this research is data reliability.

• プロジェクトの初しょ期き段だん階かいで問もん題だい領りょう域いきを特とく定ていすることが重じゅう要ようだ。

  It is important to identify problem areas in the early stages of a project.