The structure formulas of PAH are tabled in accordance with the characteristic Numbers proposed by one of the present authors.
PAH的结构式皆以作者之一所提出的特征数表征。
They have the same number of protons in their nuclei (this is the defining characteristic of an element), but different Numbers of neutrons.
在它们的原子核中质子数是相同的(这是一个元素定义性的特征)，但是中子的数量不同。
The relations between dielectric, Numbers of circles and the characteristic parameters of the helical line were studied.
通过实验研究了充电介质、螺旋匝数及形成线结构与螺旋脉冲形成线特性参量间的数值关系。
The random Numbers used in cryptography are often required to hold the unpredictable characteristic.
在密码学中，通常要求所使用的随机数具有不可预测性。
This paper bases on the natures of characteristic functions and continuity theorem, introduces the use of characteristic functions in strong law of large Numbers.
在特征函数性质和连续定理的基础上，给出特征函数在强大数定律中的应用。
The optimum combinations adopting different numbers of characteristic parameters have been obtained by analyzing the main variables of all the input parameters.
对全部输人特征参数进行了主变量分析，给出了采用不同数量特征参数的优化组合方案。
Samples drawing by the sampling techniques of Permanent Random Numbers (PRNs) have good characteristic of sample coordination.
采用永久随机数法抽样技术抽到的样本具有很好地样本兼容的性质。
By using the density theory of theories of Numbers, the article gives the density discrimination method determining the convergence and divergence characteristic of the positive term series.
借鉴数论方法中的密率论，给出判别正项级数敛散性的密率判别法，此方法特别适用于判定一些较难或不能给出通项表达式的级数的敛散性。
Simultaneously, exploration data have the characteristic of multiple sources, multiple types, multiple dimensions, multiple numbers, multiple tense and multiple subjects characteristic.
同时，勘探数据具有显著的多源、多类、多维、多量、多时态和多主题特征，给数据的采集、存储、管理和应用带来了巨大困难。
Based on the unascertained characteristic of river water quality system, the parameters of water quality model are defined as the unascertained Numbers by using unascertained mathematics theory.
基于水质系统的未确知性，运用未确知理论将瞬时排污情形下河流水质模型参数定义为未确知数。
Based on the unascertained characteristic of river water quality system, the parameters of water quality model are defined as the unascertained Numbers by using unascertained mathematics theory.
基于水质系统的未确知性，运用未确知理论将瞬时排污情形下河流水质模型参数定义为未确知数。
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