To investigate the constitution of prime factors of binomial coefficients by utilizing divisibility theory,two theorems on searching the prime factors of {2n n} are given.
利用整除理论,研究一类特殊二项式系数的素因子构成,得出了两个寻找{2n n}的素因子的定理,为研究二项式系数的素因子提供了一个有力工具。
It is proved that such finite groups with 4pm maximal order elements are solvable by making use of corresponding results on K3-simple group and K4-simple group, as well as the prime factor of the order of a group and the length of the conjugate class of cyclic subgroups with order k.
运用群阶的素因子,k阶循环子群共轭类的长,以及K3-单群和K4-单群的相关结论,证明了最高阶元素个数为4pm(p为素数,p>17,2p+1≠2a3b-1,且2a3b-1是素数,m是正整数)的有限群是可解群。
In this paper,we get all of unitary perfect number that has less than 6 prime factors,apart from 6,60,90,87360.
对于素因子不超过五个的正整数,除去6,60,90,87360外,不存在其他酉完全数。
The choice of land gradation factors is a basic job in land gradation,the reasonability of which is directly related to objectivity and practicability of the gradation results.
土地定级因素因子的选择合理与否关系到整个定级成果的客观性和实用性。
With the example of farmland grading in Shanhaiguan district under Qinhuangdao City, Hebei Province, this paper illustrates processes and methods of factors on farmland grading in terms of factor selection, classification of grading units, point-giving to factors, calculation of total points and classification of grades.
以河北省秦皇岛市山海关区的耕地定级为例,从选择定级因素因子、划分定级单元、因素因子赋值、计算总分值以及划分农用地级别,介绍了农用地因素法定级的方法和步骤。
The choice of land gradation factors is closely related to the objectivity and practical results.
能否合理的选择土地定级因素因子与定级成果的客观性和合理性有着很重要的关系。
Effect of atomic size factor and electron factor on the formation of quasicrystalline have been studied.
利用原子尺寸因数和电子因素构成键参数坐标系统,研究了原子尺寸因数和电子因素对准晶形成的影响。
The effect of atomic size factors and electron factors on the formation of quasicrystalline was studied.
研究了原子尺寸因数和电子因素对准晶形成的影响。
aswell as the carbonyi's electron factor and space factor.
讨论了醛、酮结构在羰基亲核加成反应中所起的作用 ;还讨论了羰基的电子因素和空间因素 ;进一步用键角因素丰富和完善了传统理论 ,用许多因素解释了这一理
The sum of any two elements has an even number of prime factors.
其中任何两个元素之和有偶数个素因子。
factor of absence of remainder
残缺因素 残缺因子
synergio factor
促性腺激素增强因子
prolactin release inhibiting factor
催乳素释放抑制因子
prolactin release inhibitory factor
促乳素释放抑制因子
TRF (Thyrotropin Releasing Factor)
促甲状腺素释放因子
luteinizing - hormone releaasingfactor
促黄体激素释放因子
thyrotropin-releasing factor
促甲状腺激素释放因子
follicle stimulating hormone releasing factor
促卵泡激素释放因子
colicinogenic factor
大肠杆菌素生成因子
melanocyte-stimulating hormone releasing factor
促黑素细胞激素释放因子
melanocyte-stimulating hormone release inhibiting factor
促黑素细胞激素释放抑制因子
factor analysis experiment
因素分析实验 因子分析实验
orthogonal factor model
正交因素模型 正交因子模型
An analysis of the non-learned factors in "affecting factors"of learned journals;
学术期刊“影响因子”的非学术因素分析
What Traits of a Child will Affect the Parent-Child Relationship?
孩子特质的哪些因素影响亲子关系?
Research on the Effect Factors of E-commerce Application in Electronics Industry;
电子行业电子商务应用影响因素研究
Cloning and Characterization of ARF Family Gene SmARF8 in Solanum melongena L.
茄子生长素响应因子SmARF8的克隆与分析