BNF
美 
英
- 網絡法國國家圖書館；巴科斯范式(Backus-Naur form)；巴克斯范式(Backus normal form)
例句
Then, HSM domain ontology was described and expressed by Backus -Naur Form (BNF) formulations, and was stored in relationship database.
采用巴科斯范式對領域本體進行統一的描述和表達，并利用關系數據庫的形式存儲。
In BNF , the only way to indicate a list of an arbitrary number of elements is through recursion .
在BNF表示法中，為了表示一串任意個數的元素，唯一的方法是通過遞歸來定義。
Some reports indicate reduction of legume BNF by mineral N is dependent on host species and form of N available.
一些報告還指出，通過礦質氮引起的豆類作物生物固氮的減少與寄主品種和有效氮的形態有關。
As a critical tool, BNF models play irreplaceable roles in predicting nitrogen fixation of soybean quantitatively.
生物固氮模型作為一種重要工具，在定量預測大豆生物固氮速率方面具有不可替代的作用。
Like rhizobia, the nitrogen-fixing endophyte Frankia elicits the formation of specialized root nodule structures which house BNF processes.
像根瘤菌一樣，固氮的內寄生弗蘭克氏菌能夠誘發特殊的根瘤結構，在其中進行生物固氮過程。
To ensure N available from BNF does not limit legume yield, many farmers inoculate their crops with rhizobia .
為確保來自生物固氮的有效氮不限制豆科作物的產量，許多農民用根瘤菌接種他們的作物。
The grammars for complex languages are commonly described using BNF (Backus-Naur Form) notation or its close relative, EBNF (Extended BNF).
復雜語言的語法通常都是使用BNF（巴科斯-諾爾范式，Backus-NaurForm）表示法或者其“近親”―EBNF（擴展的BNF）描述的。
Generally, increasing mineral N available to legumes reduces N derived from BNF without enhancing yield appreciably.
一般來，說對豆類作物增加礦質氮的提供會減少生物固氮量而并不能明顯提高產量。
If you're familiar with parsing, you'll quickly realize that the second argument to the parse function is equivalent to providing a BNF.
如果熟悉解析的話，將很快就明白parse函數的第二個參數相當于提供了一個BNF。
Although relative response to N by legume species may differ, N fertilization will reduce nodulation and BNF by legumes.
盡管不同豆類作物種對氮的反應不同，但施氮肥會減少豆類作物結瘤和生物固氮量。
Recommendations for starter N originate from our knowledge of the legume's physiological dependence on mineral N prior to onset of BNF .
對豆類作物推薦施種肥是因為我們知道在出現生物固氮之前豆科植株對礦質氮有生理依賴。
The issue whether starter N will increase nodulation and BNF is, however, complicated by several factors.
然而，“起動氮”是否會增加根瘤和生物固氮的問題是復雜的，它受多種因素影響。
the paper adopts bnf to express the logic expressions , providing a good formalization method.
論文采用了巴科斯范式來表示邏輯表達式，為其提供了一個很好的形式化的表達方式。
Only when availability of N was increased through effective nodulation and BNF was there a response to applied P.
只有通過有效結瘤和生物固氮增加有效氮，施用磷肥才有效應。
This section provides basic information on how N affects legume BNF processes and under what conditions legumes respond to mineral N.
這部分介紹氮如何影響豆科生物固氮過程以及在什么樣的條件下豆類作物對礦質氮有反應。
Water-rich foods tend to be low in calories or have a low energy density, a BNF conference heard.
一次英國營養基金會會議上說，水含量豐富的食物往往是低熱量或低能量密度。
The BNF process reduces N2 to plant available forms using bacterial enzymes produced within root nodules.
生物固氮過程是利用植物根瘤中產生的細菌酶把N2還原成有效形態。
Based on BNF code, this paper investigates the problems concerning digital processing of rare Chinese characters.
在BNF范式編碼的基礎上，深入討論了生僻漢字數字化處理問題。
This effect of mineral N assumes there is adequate numbers of effective rhizobia available to the crop to maximize BNF.
礦質氮的這種效果是假定有大量的有效根瘤菌可使作物的生物固氮達到最大。
Firstly the paper models the simulation scenes scripts of MANET with BNFs and constraints.
首先，創建了移動自組網模擬場景腳本的BNF與約束模型。
Biotechnology Consultation Note to the File BNF No 00077.
生物技術咨詢注解，對檔案BNF第00077號。
Effect of mineral N on legume BNF and yield is a complex issue.
礦質氮對豆類作物生物固氮和產量的影響是一個復雜的問題。
The following table lists BNF lexical rules that describe how to recognize a valid input.
下表中列出的BNF詞法規則說明如何識別有效的輸入。
In this way they can ensure adequate N is inexpensively available through BNF.
這樣他們保證可以從生物固氮充分得到便宜的氮。
The characters used for Bayeux names and identifiers are defined by the BNF definitions:
用作Bayeux名稱和標識符的字符用BNF定義：
JJTree is a preprocessor, and generating a parser for a particular BNF is an easy two-step process
JJTree是一個預處理器，為特定BNF生成解析器只需要簡單的兩步
BNF grammar of fully qualified type names
完全限定類型名稱的BNF語法
