“适用范围”常见的英文表达有 "scope of application" 或 "application scope"。此外,根据语境,也可使用 "range of application" 或 "applicability"(侧重适用性) 。例如:
Please clarify the scope of application of this new policy.(请说明这项新政策的适用范围。)
The software has a wide application scope in various industries.(这款软件在多个行业有广泛的适用范围。)