查询词典 reflection factor

PCA is to perform the variable transformation, whereas factor analysis needs to form a factor model.

主元分析只是进行一定的变量变换，而因子分析则需构成因子模型。

The transformation had its external factor such as the change of the social situation at that time, however, the logic of YUAN's thinking was its principal factor.

这种转变的发生，既有当时社会形势的变化等外在原因，但更主要的是袁氏思想发展的内在必然。

Therefore, it will of be of great clinical significance in preventing the transformation from TIA to cerebral infarction to intensify the study of the risk factor of high-risk TIA, to identify the risk factor for the transformation from TIA to cerebral infarction, and to make a individualized therapeutic regimen.

因此加强对高危TIA危险因素的研究，明确影响TIA发展至脑梗死的危险因素，有针对性的制定个体化治疗方案，对有效控制TIA向脑梗死转化有非常重要的临床意义。

Aims: To investigate the expression and significance of epidermal growth factor receptor, cyclooxygenase-2 and trefoil factor 1 in the carcinogenesis of gastric mucosa.

目的：探讨表皮生长因子受体、环氧合酶-2和三叶因子1在胃黏膜癌变过程中的变化规律及其意义。

We introduce some concepts, such as yon Neumann algebras, factor von Neumann algebras, nest algebras and so on, and give some well-known theorems that we will use in this paper. In Chapter 2, we put our attention on linear maps that preserving zero Jordan triple product on nest subalgebrasof factor yon Neumann algebras.

第二章首先对因子von Neumann代数中套子代数上保Jordan三重零积的线性映射进行了研究，证明了从因子von Neumann代数中套子代数到任一有单位元的Banach代数的保Jordan三重零积的单位线性双射是Jordan同构。

So far, the cancerogenic mechanism of lung cancer is not well elucidated. Some growth factors and growth factor receptors have been identified to participate in cancerogenic processes, but the downstream pathways regulated by those growth factor receptors are uncleared.

目前已知的癌症发病机理多是生长因子和生长因子的表面受体发生异常所致，因此，进一步阐明受体下游的调控基因对于阐明癌症的发生机理和进一步设计药物靶位点都是十分有意义的。forkhead box P4(FoxP4)就是本文作者在利用生物信息学方法筛选人类心脏发育候选基因的过程中发现的一个人类新基因，目前发现三种转录本。

The flood disaster in this area had the characteristics as unexpected strong, difficulty of prediction and prevention, destructive, in large quantities, uncurbed focus and so on. 2 There were two main reasons that leaded to flood disaster in QinBa Mountain area: natural factor and human factor.

该区洪水灾害具有突发性强，预测预防难度大、成灾快、破坏性强、数量大、成灾范围集中等特点； 2秦巴山地区产生洪水灾害的原因主要有两方面：自然因素和人为因素。

Results: the main causes included seasonal variation, unhealthful life way, psychic factor, pharmacal factor and so on.

结果 分析显示消化性溃疡复发的诱因有季节变化、不良生活方式、精神因素、药物的因素等。

An unit initial stress method to calculate stress intensity factor is introduced, which uses the degradation of the 1/4 node singular unit, calculates the stress through the crack tip close to the best stress point, and gets the stress intensity factor.

提出一种计算应力强度因子的单元初始应力法，该法采用退化的1/4节点奇异单元，通过近裂尖最佳应力点应力进行求解，进而求得应力强度因子。

Pond ecosystem is a complicated system with the characteristic of dynamic state, multiple factor and unrepresentative. It was difficult to give out results for cultivation problem via single factor statistic traditionally.

池塘生态系统是一个动态、多因素、非典型的复杂系统，用单因素统计法难以研究池塘养殖中的生态问题。

For the head-teacher of the class said that I had seriously broken the school rules,which led me to a three-day suspend class.

为什么呢？因为我的班主任说我严重的违反了校规，于是让我停课三天。

Many of them believe that the conversion of thousands of working-class folk in England spared that nation from the mass carnage and the tyranny that came with the revolution in France.

他们之中有许多人相信，在英国数以千计的劳工阶级之悔改信主使英国免於遭受如法国大革命所造成的大屠杀和专制暴政。