查询词典 cramer formula

Mechanical reason of borehole collapse in brittle shale is researched. With the elastic theory, the formula for calculating the maximum and minimum drilling fluid density that would cause the initial shear fracture in vertical and inclined borehole is derived and the influence of formation non-linear deformation property is taken into account. The solution of the formula is given by iteration method.

研究了硬脆性泥页岩井壁坍塌的力学机理，利用弹性力学理论推导出了直井、斜井井壁产生初始剪切破坏而造成井壁坍塌的泥浆密度上、下限的理论计算公式，并对地层非线性变形性质对井壁应力的影响进行了修正，编制了迭代法数值求解软件。

Before we can assign a structural formula to a compound, we must first know its molecular formula.

在确定一个化合物的结构式之前，首先应知道它的分子式。

Appropriate chemical attribute information, such as structural formula, empirical formula, and molecular weight.

适当的化学性质资料，比如结构式，经验式和分子量等。

According to the XPS results, a formula for thickness calculation of silane-modified layer is also given. Based on the formula, the silane-modified layer thickness are calculated. The results show that they are about 1～2nm, which are equivalent to 1～2 monomolecular layers.

根据XPS结果给出了评估硅烷修饰层的计算公式，并据此计算获得了HA表面修饰层的厚度，各种修饰层的厚度约为1～2nm，相当于1～2个单分子层。

One is theexplicit formula for strict-connected acyclic hypergraphs:〓where a=r-d,m=/a;the other is the recurrence formula for linearacyclic hypergraphs:〓where the numbers of r-1 and r in the multinomial coefficient are j and krespectively,〓 and 〓.

一个是关于严格-维连通无圈超图的显式公式：〓其中a=r-d，m=/a；另一个是线形无圈超图的递推公式：1=〓其中r-1与r在多重组合数中的重数分别是j与k，〓且f(0，r)=1。

With used Newton s image formula of spherical refraction and the optical spacing term, the formula about cardinal point and image of the thick lens is derived with simpler and more natural way.

利用折射球面成象的牛顿公式及光学间隔概念，更加简洁地得出了有关厚透镜成象的基点及物象公式。

Tne paper systemically discusses the object-image relations in the thin-lens imasery with Newton Formula and the relative graphs,and new and deeper theoretical otplanations are given. Thin-lens imasery Newton Formula,graph velation

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The nonperiodic cyclic equivalence classes of this kind of codes could be counted due to the period distribution formula and the Mobuis inverse formula

最近一些国外学者发现，用无内周期码字可以构造出一类新的具有良好相关特性并且在序列密码中有用的密

One study has shown that babies fed a formula with palm olein oil absorbed over 8% less fat than babies fed a palm olein oil-free formula.2

其中一个研究发现如果婴儿吃含有棕榈油油精的配方奶，会比不含棕榈油油精的配方奶粉少吸收8%的钙质。

In order to do so, a new direct formula is first developed to generate the fuzzy rules from the premise part in FNN. This direct formula not only guarantees a one to one mapping that maps the fuzzy membership functions onto the fuzzy rules, but also alleviates the coding effort during hardware implementation. It is further elaborated that the FNN with non-overlapped BPMF's has the advantage of faster on-line training which requires less computation time, but at the cost of more memory requirement to store the fuzzy rules.

本论文提出与查表法技术同等简易的具有非重叠方块脉冲归属函数之FNN控制器架构，并将两者之隐藏连系关系作一完整探讨，提供一套基於FNN设计观念来设计TL控制器的方法；而此一改良的架构也应用到汽车涡轮引擎喷水控制系统及高转速无刷直流马达控制器上，透过即时学习来克服系统非线性，并透过实作验证本系统在汽车涡轮引擎高温恶劣操作环境及无刷直流马达高速三相转换时间下仍保有极佳的性能，显示以具有BPMFs的FNN为基础的TL控制器是一强健的控制系统。

World War II: Battle of Saipan - Americans take Saipan.

1944年的今天，美国在塞班战役中拿下塞班岛。

When the scorner, the rejecter of truth, has become presumptuous; when the routine of work in the various money-making lines is carried on without regard to principle; when the student is eagerly seeking knowledge of everything but his Bible, Christ comes as a thief.{DA 635.3

当讥诮和拒绝真理的人，到了任意妄为时，当追求财利者罔顾按道义经营谋利时，当学人正在兢兢业业地研究各种知识，而单把圣经丢在一边时，基督要像贼一样来临。