specification
/ˌspesɪfɪˈkeɪʃən/noun
1- an act of describing or identifying something precisely or of stating a precise requirement明确说明; 详述：
give a full specification of the job advertised
对那份招聘广告中的职务作详细描述
mass noun there was no clear specification of objectives.没有对目标进行明确描述。
1.1
- （常作specifications）a detailed description of the design and materials used to make something工程设计书; 详细计划书。
1.2
- a standard of workmanship, materials, required to be met in a piece of work规格; 规范; 明细单：
everything was built to a higher specification.
一切都是按照更高规格建造的。
1.3
- a description of an invention accompanying an application for a patent（申请专利用的）发明物说明书。
词源
late 16th cent.: from medieval Latin specificatio（n-）, from late Latin specificare （see SPECIFY）.