[guī fàn]
(约定俗成或明文规定的标准) standard; norm; specification; specs; canon; canonical; performance specification (设备的)
grammatical correctness
语法规范
technical standard
技术规范
conform to the standard
合乎规范
specifications of quality
质量规范
fall short of the specification
不合规范
This is not the normal way of using the word.
这个词的用法不规范。
He does not speak standard Putonghua.
他的普通话说得不规范。