Biotechnology Consultation Note to the File BNF no 00077.

生物技术咨询注解，对档案BNF第00077号。

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JJTree is a preprocessor, and generating a parser for a particular BNF is an easy two-step process.

JJTree是一个预处理器，为特定BNF生成解析器只需要简单的两步。

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In BNF, the only way to indicate a list of an arbitrary number of elements is through recursion.

在BNF表示法中，为了表示一串任意个数的元素，唯一的方法是通过递归来定义。

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Like the adult version, which has been available for many years, the BNF for Children will undergo continuous revision and a new edition will be produced each year.

BBC: NEWS | Health | Doctors get child medicines help

The aim of BNF (British National Formulary) for Children is to provide a practical, relevant and authoritative information source for all health professionals involved in the drug therapy of children.

BBC: NEWS | Health | Doctors get child medicines help