查询词典 formaldehyde solution

In Chapter two, it is given of the three-dimensional boundary element and the boundary element space, Sobolev space for the contact boundary element problem with friction; it is proved of existence and uniqueness of the solution by variation inequality for the contact Boundary Element Method matrix equation under two kinds of condition that the contact zone is fixed and the contact zone is increasing along with the load; it is given of the expressionfor the error of the exact solution and the boundary element solution.

第2章，给出三维边界单元及边界元空间、有摩擦接触边界元问题的Sobolev空间，利用变分不等式证明了不变接触区和随载荷可变接触区两种情况下的接触边界元法矩阵方程解的存在唯一性，给出了准确解与边界元解的误差表达式，还证明了三维弹塑性摩擦接触问题凝缩矩阵解的存在唯一性，为三维弹塑性摩擦接触边界元法奠定数学基础。

The conclusion was drawn by the synthesis of molecular sieve: after mixed soluble glass and aluminium sulfate with proper proportion under room temperature, it was stirred stormily to react. And then we mixed with potassium hydroxide solution after filtrating. At last, the molecular sieves of potassium type was synthesized after the mixture reacted in the oven or autoclave for 24 hours. The molecular sieve was remodeled more than twice with ammonium chloride solution that the concentration was 3mol/L and then remodeled twice with the saturated sodium chloride solution. Finally the molecular sieve was changed into the sodium type. It was named W zeolite.

通过对分子筛的合成得到：以泡花碱、硫酸铝为原料，以硅铝比按一定比例于室温下将二者混合，激烈搅拌，抽滤后与氢氧化钾溶液混合放于烘箱或高压釜中高温晶化24小时，晶化后的分子筛为钾型，先后用3mol/L氯化铵溶液和饱和食盐水各对其改型两次以上，最后改为钠型，可制得W型沸石分子筛。

The suitable detection wavelength was selected through qualitative determination of wave spectrum. With 95% ethanol as the reference solution, the standard curve was drawed with a series of different concn. of standard solution of chlorogenic acid, and the Absorbance of extracting solution was determined and the chlorogenic acid content in filtrate was calculated.

波谱定性检验选择适宜的测定波长，以95%乙醇为参比溶液，用配制好的一系列不同浓度的绿原酸标准溶液绘制标准曲线，测定提取液的吸光度，计算滤液中绿原酸的含量。

To realize the simple and accurate measurement of solution density,the calculation formula for solution density was deduced after establishing the relation between solution pressure and density.

为了实现对溶液密度的简单、精确测量，建立了溶液压力与溶液密度之间的关系，推导出溶液密度的计算公式，确定了利用差压传感器来实现对溶液密度的间接测量，指出了测量的难点和解决的方法。

To realize the simple and accurate measurement of solution density, the calculation formula for solution density was deduced after establishing the relation between solution pressure and density.

摘 要：为了实现对溶液密度的简单、精确测量，建立了溶液压力与溶液密度之间的关系，推导出溶液密度的计算公式，确定了利用差压传感器来实现对溶液密度的间接测量，指出了测量的难点和解决的方法。

The solution for the non-stationary system is obtained through the stationary disturbed system. The gradients of the system performances to all design variables are derived and they can be used to obtain optimal solution of the systems. More generally, if the performance of the system is a function of the solution of a set of generalized Lyapunov equation, then the gradients of the performance function to the coefficient matrices of the equation can be found in closed form.

文中显示，非静态干扰系统的解可由静态干扰系统求得，而此干扰系统之最佳解，则经由本文所推导的对所有设计变数之系统性能函数梯度获得；一般而言，如果系统之性能函数是一组通式化 Lyapunov 方程式解的函数，则此方程式的系数矩阵之性能函数梯度，可用封闭解表示之。

Aiming at the problem that solution FEMequation set needs too much memory, segregated solotion methOd has beenadopted and for the first in China E l em ent- B y- E lement has been introduc edwhen solving flow field parameter equation sets. EBE technology need notassemble and store the global stiffness matrix, and minish effectively memoryrequires of solution equation set, moreover it has inherent high parallelity, andadvance equation solution.

针对求解流场有限元方程组占用计算机内存资源过多、限制求解规模的缺点，采用分离式求解法，在求解流场各参数方程时，在国内首次引入EBE技术，EBE技术不必组集和存储总刚矩阵，能有效地减小了方程组求解时对内存空间的要求，同时EBE技术具有内在的高度并行性，能有效提高方程组的求解速度。

It is proved that if the optimal solution tree has an inter-node, the necessary and sufficient condition that tree structure GAs are solution foundable is that the initial population contains an inter-node; the upper limit of solution foundable probability is also calculated and the population size is proved to increase at most in a polynomial of increasing problem complexity and the probability upper limit.

本文接着给出了当初始群体随机产生，只有杂交算符作用或只有复制与杂交算符作用的遗传算法有解的充要条件，并加以证明；而且求出了这时有解的概率上限，并证明群体大小的增加不超过问题复杂性和有解概率上限的某个多项式。

The notes of essential solution and essential components of solution set for vector optimization are introduced in order to research the stability of weak efficient solution of general vector optimization including the infinite dimensional problems.

对向量优化引入本质解和解集的本质连通区的概念，研究一般向量优化问题弱有效解集的稳定性。

The Lewy equation is locally solvable and globally solvable,and we have got the analytic expressions of the local solution and the global solution.So we obtain the conclution "when ,Lewy's equation (5) has solution ".

Lewy方程是局部可解与整体可解的，我们已经获得了其局部可微解与整体可微解的解析表达式，获得了"Lewy方程（5）当，则有解"的结论。

Methods Clinical data of 3 cases of bile duct injury during laparoscopic cholecystectomy were analyzed retrospectively.

回顾总结3例LC术中胆管损伤的临床资料，分析3例胆管损伤的原因及对策。

These techniques are applied to the gobang.

本文将这些技术用于五子棋中。