/fiːld ʌv juːs rɪˈstrɪkʃən/ – Phrase
Definition: Hạn chế về lĩnh vực sử dụng.
A more thorough explanation: a statement in a licence agreement limiting the licensee’s use of the licensed intellectual property to a defined area of application, product or service market, or to a designated geographical area
Example: The field of use restriction divides the licence rights among various applications.