类存在

表皮干细胞（epidermalstemcells，ESCs）是一类存在于皮肤组织中的多能性细胞，能够自我更新且具有多相分化潜能。

Epidermal stem cells ( ESCs ) are multipotent stem cells resided in the epidermis , which are self-renewal and potential to differentiate into different types of cells .

促分裂原活化蛋白激酶（MAPKs）是一类存在于真核生物中的丝氨酸/苏氨酸蛋白激酶。

Mitogen-activated protein kinases ( MAPKs ) are Serine / Threonine protein kinases in eukaryotes .

最后通过一个神经网络的数值仿真，说明了滤波器设计方法的有效性。3.研究了一类存在量测数据丢失的非线性随机切换系统H∞滤波。

The effectiveness of the proposed design algorithm is finally illustrated by a simulation study of neural networks . 3 . The H ∞ filtering problem is investigated for of a class nonlinear stochastic switched system with missing measurements .

水杨酸（Salicylicacid）是一类存在于植物体的酚类物质，能够诱导植物系统获得性抗性，水杨酸被广泛地应用于植物抗逆研究。

Salicylic acid ( SA ) is a kind of hydroxybenzene substance exist in plant . It could induce systemic acquired resistance , so the research on SA about stress resistance of plant were widely made .

氢化酶（hydrogenase，简称H2ase）是一类存在于微生物体内的重要生物酶，它可以催化氢的氧化反应，也可以催化还原质子产生氢气。

Hydrogenases are one of the important enzymes in many microorganisms , which can catalyze the reversible oxidation of hydrogen .

本文针对在每类存在较多样本的情况下，PCA算法无法有效的利用这些样本提高识别率的问题，提出了一种基于独立类别的PCA&SVM的人脸识别算法。

PCA algorithm can 't effectively use the training samples to improve the recognition rate while each class has much training samples . This paper proposed a method called PCA & SVM based on each class .

着重研究了一类存在间隙的双质体振动系统的周期运动在非共振和弱共振条件下的Hopf分叉。

A vibratory system with double masses and a gap is considered . Dynamics of the system are studied with special attention to Hopf bifurcations of period motions in non-resonance and weak resonance cases .

岩石的U-Ra平衡系数研究表明，火山岩类存在明显的U-Ra不平衡现象，而花岗岩提供成矿铀源应发生在16000a以前。

U-Ra equilibrium coefficients of rocks indicate that there is obvious U-Ra disequilibrium phenomenon in volcanic rocks , and the time when granites provided uranium source occurred 16000 a ago .

电影艺术批评是电影鉴赏的类存在。

Cinematics critique is a kind of existence of film appreciation .

对测定水和废水中石油类存在若干问题的讨论

Discussions on Oils Existing in Measuring Water and Waste water

人类是一种理性的类存在物，唯有人类才有理性；

Mankind is the existence of the rationality , only man has the rationality ;

历史的普遍性，或者作为普遍性概念的历史，它的真理性基础作为普遍性存在物或类存在物的人。

The foundation and truth Universal history is human itself as a universal or species-being .

但是特征选取算法仅适用于解决特征与类存在较高相关性或者完全不相关的情形。

When the relevance between feature and class is either highly correlated or completely irrelevant , feature selection can perform best .

针对一类存在高斯模糊差异的置换混叠图像，提出基于差分进化的高斯模糊置换混叠图像盲分离。

A blind separation algorithm based on differential evolution is proposed for a type of permuted alias image with gaussian blur difference .

植物精油是一类存在于植物不同组织中的重要次生代谢物质，为易挥发的具有强烈香味的油状液体。

Plant essential oils , volatile and highly fragrant liquids , are important secondary metabolites present in different tissues of the plant .

人作为类存在物有着实践和劳动的内在需要，进行劳动也是人区别于其他类的一个标志。

Man , as a species life , has an innate need to labor , which is a symbol distinguishing man from other species .

心脏的起搏受控于一类存在于心脏窦房结被称作If的离子通道，该通道是被细胞膜的超极化所激活。

Cardiac pacemaking is controlled by an inward current called I f , which is activated by membrane hyperpolarization of pacemaker cells in the sinoatrial node .

对一类存在特权集的门限群签名方案进行安全性分析，指出了其中的设计错误；提出了修改方案；

The security of a scheme called " a group of threshold group-signature schemes with privilege subsets " is analyzed and the error in designing is found .

在超宇宙级的证悟中，这些第三类存在被委托担任保存密法巨大财富的任务。

On the trans-cosmic scale of realization , these beings of the third category are entrusted with the task of preserving the vast treasure of the esoteric teachings .

蚌科是淡水底栖动物的重要类群，由于淡水蚌类存在趋同现象，致使我国蚌科在分类上仍然存在许多争议。

Unionidae is an important group of freshwater benthos . Due to the convergence phenomenon of freshwater mussels , there is still much controversy in the classification of Chinese Unionidae .

通过诊断示例表明，该方法在故障类存在重叠时，降低了神经网络的训练难度，故障诊断的正确率达到99%以上。

The fault diagnosis example shows that the difficulty of neural network training is diminished and the fault diagnosis accuracy can reach more then 99 % when faults overlaps exist .

人类又是一种非理性的类存在物，唯有人类才有情感、直觉、灵感、意志、信仰、顿悟等非理性因素。

Mankind is the existence of the irrationality , only man has such irrationality factors of emotions 、 intuition 、 inspirations 、 volition 、 belief 、 realization and so on .

时滞切换系统是一类存在时滞的切换系统，这类系统的连续动态、离散动态和时滞相互作用，使得系统的动态特性极为复杂。

Switched time-delay systems are a kind of switched systems with time-delay . Their dynamics become very complex because of the interaction among their continuous dynamic , discrete dynamic and time-delay .

构造是一种重要而灵活的思维，利用构造法与反证法、构造法与数学归纳法的联合运用，解决图论中的一类存在性问题。

Construction method is an important and skilful thinking , using construction method and reduction to absurdity and construction method and inductive method to resolve a kinds of existence problem in graph theory .

影视文化是狭义文化的类存在，具有普及性、实践性特点，又改变了人类传统的感知方式和广义文化意义上的心理结构。

Movie and TV culture , culture in its narrow sense , has the features of practice and popularization and has changed the traditional perceptive mode and the psychological structure of the culture in its broad sense .

历史是实践的绽开，人在实践中发现自己的自由本质、发现自己是类存在物和社会动物，但是对象化的本质反过来统治人。

History is that practice unfolds itself , and in practice people find their free nature and find they are " class things that exist " and " social animals " but the object-oriented nature in turn rules people .

在本文中首次提出了用分割DO循环执行区间的方法来消除递归依赖关系，使得某一类存在递归的DO循环能在子区间上向量化。

The principal contribution of this work is the presentation of a new method which removes the recurrent dependency by segmenting the interval of DO loop , thereby some DO loops having recurrences can be vectorized in each subinterval .

提出罗尔定理证明一类存在性问题的方法，采用拉格朗日中值定理或柯西中值定理来证明这类问题往往需要构造精巧的辅助函数，我们还指出了这种方法的一般性。

We present a general method to prove a class of problems by Rolle ′ s theorem , which need make tricky function by Langrange or Cauchy mean value theorem , and point out our method is feasible for these problems .

在这个例子中，假设在Customer和Account类之间存在1：N的关联。

In this case , assume an association of1 : N between the Customer and Account classes .

正如我们在第二个策略中看到的，在Right和Estate类之间存在着多对一关系。

As we saw in our second strategy , there is a many-to-one relationship between the Right and Estate classes .