bnf

The BNF is used to formalize the network access control rules .

文中还运用巴科斯范式对主机防火墙的网络访问控制规则进行了形式化描述。

Secondly , it is using the Probability-based context-free grammar to analyze sentence , and the sentence is used into symbolic forms by the BNF .

其次就是使用基于概率的上下文无关文法对句子进行分析，并且使用巴科斯范式规则将句子表示成符号形式。

A general syntax analysis algorithm based on extended BNF grammar

基于扩展的BNF文法的通用语法分析算法

In this paper , according to BNF , the language syntax rule is defined .

本文采用巴科斯范式（BNF）定义了CNC系统中宏程序设计语言文法。

New ideas and technologies in proteomics would impregnate new activities for the development of BNF .

蛋白质组学新思想、新技术的引入，为固氮研究的发展注入了新的活力。

The BNF is used to formalize the packet filtering rules .

本文利用巴科斯范式（BNF）对驻留主机防火墙的过滤规则进行了形式化描述。

The BNF representation of G / SQL syntax is included in this paper .

还给出了G／SQL语法的BNF表示。

This paper has carried on attribute analysis and BNF representation of process knowledge in the management in terms of systematic science .

本文从系统科学的角度对管理工作中的流程知识进行了属性分析和BNF描述。

Study on Reactive Kinetics and Thermodynamics Mechanisms of BNf in the Low Temperature Nitriding Process Using Inorganic Precursors

利用化学转化法制备氮化硼纤维的反应热力学动力学研究

BNF description and definition of extended constraints-based modular Petri nets of use case diagram

用例图的BNF描述和扩充的基于约束模块化Petri网检测

The abstract syntax of DFL programming language was described through BNF notation ;

通过BNF描述了DFL程序设计语言的抽象语法；

As a critical tool , BNF models play irreplaceable roles in predicting nitrogen fixation of soybean quantitatively .

生物固氮模型作为一种重要工具，在定量预测大豆生物固氮速率方面具有不可替代的作用。

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。

Through analyzing the DML framework in relational database , the BNF for unifying operation multimedia data and traditional data was designed .

通过分析关系数据库中的DML框架，设计出多媒体数据与传统数据统一操作的巴科斯范式。

Water-rich foods tend to be low in calories or have a low energy density , a BNF conference heard .

一次英国营养基金会会议上说，水含量丰富的食品往往是低热量或低能量密度。

RDF / RDF Schema is a sound and complete formal system , which has BNF formal syntax and model theory based formal semantic .

RDF/RDFS是一个完整的形式化系统，具备BNF形式语法、基于模型理论的形式语义，是一个完备、可靠的形式化系统，从而保证了RDF描述语义推理的形式正确性。

It is important to quantitatively characterize biological nitrogen fixation ( BNF ) of soybean for farmland fertilizer management and non-point source pollution control .

定量描述大豆生物固氮量对于施肥管理以及农业非点源污染控制具有十分重要的意义。

It supplies OQL with update statement , and analyses its process flow . The improved BNF for OQL is given .

为OQL语言补充了更新操作，分析了其工作过程，并给出了改进的OQL的BNF范式。

Biological nitrogen fixation ( BNF ) is strongly associated with global nitrogen cycling and global changes due to its effects on release of greenhouse gas .

生物固氮对全球生态系统氮素循环和全球变化有着重要影响，但是由于测定方法的原因，过去对生物固氮，特别是多年生固氮植物的共生固氮的定量研究不足。

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

All uses of BNF in the next chapter ( 'Lexical Analysis ' ) are lexical definitions ; uses in subsequent chapters are syntactic definitions .

在下节（“词法分析”）中使用的BNF都是词法定义，以后的章节是句法定义。

BNF description of syntax

巴克斯范式语法描述

If you 're familiar with parsing , you 'll quickly realize that the second argument to the parse function is equivalent to providing a BNF .

如果熟悉解析的话，将很快就明白parse函数的第二个参数相当于提供了一个BNF。

Biological nitrogen fixation ( BNF ), which provides all the plants on the globe with 75 % of fixed nitrogen , is one of the important projects in life science .

生物固氮为全球的植物提供75%的氮素，是生命科学中的重大课题。

This paper also proposed a descriptive language of formal rules based on BNF and production rule , formalized the processing rules for consecutive verb and implemented the rules by computer program .

同时，还提出了一种基于BNF范式和产生式规则的形式化规则描述语言，完成了对规则的形式化描述和软件实现。

It not only introduces the six - hundred - year history of the French National Library and its development , but also introduces the idea of architecture of BnF , library management , library service .

文章论述了法国国家图书馆六百多年的发展历史及其业务创新，介绍了密特朗新馆设计的理念与管理服务的思想。

The grammars for complex languages are commonly described using BNF ( Backus-Naur Form ) notation or its close relative , EBNF ( Extended BNF ) .

复杂语言的语法通常都是使用BNF（巴科斯-诺尔范式，Backus-NaurForm）表示法或者其“近亲”―EBNF（扩展的BNF）描述的。

After defining the alarm event using Backus Normal Form ( BNF ), it puts forward an event correlation model with Petri net , and using this model designs the alarm event correlation module .

在使用巴柯斯范式定义了告警事件的基础上，本文提出了一种基于Petri网的事件关联模型，并采用该模型完成了告警关联模块的设计。

In accordance with the present status , the four kinds of most commonly used bath compositions BNF type , RC type , ascorbic acid type and sodium glyconate type apd their operation conditions are listed .

根据国内目前的情况，列出了BNF型、RC型、抗坏血酸型和葡萄糖酸钠型等四类槽液的配方及工艺条件。

This paper analyzes and evaluates the different kinds of representation methods , describes the concepts of blackboard model , knowledge source , and blackboard framework , and gives a rigorous BNF definition to the blackboard framework .

文中还对目前各种知识表达方法进行了评价，对黑板模型、知识源、黑板框架的概念进行了描述，并对黑板框架给出了严格的bnf定义。