pa·ram·e·ter
noun/pəˈræmɪtə(r)/
/pəˈræmɪtər/
[usually plural] (formal)- something that decides or limits the way in which something can be done
决定因素；规范；范围 - to set/define the parameters
制订／设定规范 - We had to work within the parameters that had already been established.
我们必须在已设定的范围内工作。
Oxford Collocations DictionaryParameter is used after these nouns:- performance
Word Originmid 17th cent.: modern Latin, from Greek para- ‘beside’ + metron ‘measure’. - to set/define the parameters