查询词典 variable

Sequences of 28S rDNA across Acari, though with variable region, were not randomly distributed, with the expansion segments being more variable than the core regions and with an increasing sequence divergence with taxonomic distances.

散布图显示，转换取代与颠换取代有类似的线性变化；支序分析及群聚分析的亲缘关系显示，同科及同属内的成员都群聚的很好，全爪蟎属与小爪蟎属的亲缘关系近，与叶蟎属较近的是岩蟎属。28S rDNA的序列特性显示，其核心序列适合分析较高阶的蟎蜱亲缘，而展延区则可应用於低阶的分析。

Variable values can be set in the Interactions Case Properties dialog by selecting the action "Set Variable and Widget Value equal to Value".

变量值可以设置的互动关系也不一样属性对话框中选择的行动"设置变量和widget值等于值"。

Now you may be thinking,"Why do we need an action variable when INow you may be thinking,"Why do we need an action variable when I

现在您或许会想"既然我也可以选择person或howmany是否出现，那为什么我们要用一个action变量呢？"

In order to calculate the crack expansion life in the action of variable amplitude load for the metal bar with V-shaped notch, the formula of bar fracture frequency was obtained theoretically by setting a size of bar fracture region applied in the engineering. Based on it, the mathematic expression of crack expansion life of bar V-shapednotch tip in the action of variable amplitude load was built.

针对金属棒料在变幅载荷作用下需要较精确地获取其V形槽尖端裂纹扩展寿命的问题，通过给定一个工程上能接受的瞬断区尺寸，获得了棒料断裂频率的计算公式，在此基础上，建立了变幅载荷作用下棒料V形槽尖端裂纹扩展寿命的数学表达式。

ABSTRACT The paper mainly studies the variable structure adaptive control theory for uncertain systems, and applicated the theory into the designs of bank-to-turn missile autopilots. The main contributions of the paper are as follows:(1) Under the condition that all the matched or mismatched parameter, input and disturbance uncertainties exist, a complete set of variable structure control system design and analysis method is proposed and investigated, which brecks throush the serious confines of variable structure invariance conditions theoretically and widen the application area of the VSC theory greatly.

本文着重研究了不确定性系统的变结构自适应控制理论，解决了目前变结构控制理论和自适应控制理论中存在且亟待解决的四个方面的问题，将获得的理论研究成果直接应用于倾斜转弯导弹的自动驾驶仪设计中，取得了很好的结果。

Since the variable weights are determined to simultaneously optimize the training of calibration set and the prediction of validation set, variable weighting can be seen as an optimized rescaling of the variables in certain sense and therefore is more flexible than traditional variable selection methods.

通过对传统的基于变量选择的校正模型的考察可以发现，进入校正模型的变量实际上被赋予权重1，而被模型舍弃的变量的权重实则为0。

Topological optimization system of variable density method based on finite element software;2. Interface depths inversion of potential field data with variable density model;3. According to the characteristics of the cold insulation box of Fractionating tower, it is considered that the effect of inner-filling on the construction is related with the variable density, then the relative formulation in the condition of n.

根据分馏塔保冷箱的特点，认为内填料对结构的作用与变密度有关，推导了无水平位移下的相关公式；对此结构在有水平位移下内填料的发育进行仿真分析，并将内填料的作用与结构的楼层柱的旋转角建立联系；最后根据得到的结论对分馏塔保冷箱在风与内填料作用下进行了非线性分析，得到结构的极限承载力。

According to the structure and characteristics of slip-form construction, the granulation tower project to be based on the top elevation from start to carry out the assembly of sliding-mode platform, with variable cross-section slope-walled tower, taking into account the technical characteristics of slip-form construction, the proposed construction here, the variable cross-section made the slopes with variable cross-section level (internal reinforcement unchanged), and then adjust the thickness to die or continue to slip.

根据工程结构及滑模施工特点，本造粒塔工程拟从基础顶标高处开始进行滑模操作平台的组装，塔壁斜坡变截面，考虑到滑模施工的技术特点，建议施工此处时，将斜坡变截面做成台阶变截面，然后再改模调整壁厚继续滑升。

YZB series crane and metallurgical variable voltage and frequency tree 0phase motor (hereinafter called'the motor').combing the functions ofcrane and pase asynchronous motors and strong points of the variable voltage and frequency technology have advanges of high mechanical strength and overload capacit,wide range of variable and stead operation. the basic technical data of the motor accords withIEC34-1 international standard and GB755 national standards stipulated with performances reached the 90s word level.the motor cam ne ised for a;; lomds of cranes.

YZB系列起重及冶金用变频调速三相异步电动机是将起重及冶金用三相异步电动机的特点与变频调速的优点集与一体，具有过载能力大机械强度高、调速范围宽、运行稳定的特点，其基本技术条件符合IEC34-1国际标准和GB755国家标准规定，电动机各项性能指标同国外九十年代水平相当。

This represents a fundamental mathematical limit on the best possible lossless data compression of any communication: considering a certain message as a series of realisations of a certain random variable (where the random variable can be "the next letter", or "the next word", or any other subdivision of text), the shortest number of bits necessary to transmit one message is the Shannon entropy of the corresponding random variable, multiplied by the number of realisations in the original text.

当然如果各个队夺冠的几率不等的话，那么熵则不会是5。因为如果从强队开始问问题，则不需要5个问题一般就可以得到答案。而根据哈夫曼编码的启发，我们表示这32个队，不需要平均长度为5的二进制位。从另外一个角度来看，熵作为信息量的大小也是表达能力的衡量，或者是不确定度的衡量和混乱程度的表现。为什么选择log来表示熵呢？如果X的表达能力为H，Y的表达能力为H，那么X+Y的表达能力应该是二者的乘积，所以H = H + H。

Do you know, i need you to come back

你知道吗，我需要你回来

Yang yinshu、Wang xiangsheng、Li decang,The first discovery of haemaphysalis conicinna.

1〕 杨银书，王祥生，李德昌。安徽省首次发现嗜群血蜱。