查询词典 differentiation of implicit function

The finite volume method is used to transform the controlling differential equations into the algebra ones, and the semi-implicit method for pressure-linked equations is used to solve the pressure.

同时，采用有限体积法将控制微分方程离散为代数方程，采用SIMPLE方法求解压力。

By applying the explicit and implicit Euler methods to the neutral delay differential equation, two difference equations of the numerical solution are obtained.

把显式Euler方法和隐式Euler方法分别应用到这个中立型微分方程，得到了两个关于数值解的差分方程。

Because the equation is a various coefficients second-order parabolical partial differential equation,explicit difference formats usually have high condition for stability. Implicit difference formats have good stability,but they must calculate a set of algebraic equations,which are too complex.

由于泥沙扩散方程是一个二维变系数的抛物型方程，对于多维的方程，显格式往往稳定性要求很高，而隐格式虽然稳定性较好，但它要解大型的代数方程组，工作量也非常大，为了克服这两种格式的不足，常用ADI法求解，但仍存在一些计算量偏大等不足之处，因此构造出更好的差分格式是有必要的。

For convection dominated diffusion equations with constant coefficients, the implicit scheme is consistent,unconditionally stable and its L~2 error estimation is derived.

对常系数的对流占优扩散方程而言，基于一边有限差分和中心差分的隐格式是相容的并且无条件稳定，对应L~2误差估计被推导。

Compared with the same wave problems with conventional Dirichlet boundary conditions, the absorbing boundary conditions can reduce the numerical reflection on boundaries and avoid solution distortion. In addition, the central differences method is economic in memory requirement and computing time compared with implicit integral method.

结果表明：该解法在空间上具有谱精度，在时间上达到二阶精度；与第一类边界条件相比，吸收边界有效地削弱了边界上的数值反射，避免了解的失真；使用中心差分的时间积分方法同隐式积分方法相比，适合波的传播特性，避免了矩阵求逆运算，并且占用的计算机内存小。

Is there any disassociation between implicit and explicit attitudes?

这是一个具有非常现实意义的问题，也是本文要解决的首要问题。

In general, the traditional characteristics of Chinese films are as follows: the formula for artistic creation is dominated by realism; the ideographic method is inclined to conveyimplications; the narrative technique is characteristically an integrated story; the portrayal of the charaters' fate is based on dramaticism;the golden mean promotes moderate and implicit emotional exp ression; the ideology holds philosophical and instructional significance.

中国电影是我们这块土地黄皮肤子民的文化结晶，它的血液中流淌着民族挥之不去的深刻印记，搜捡中国电影艺术表现上的隐显标记，有助于现代电影的健康发展。就总体而言，中国电影传统特征包括以下几个方面：以现实主义为主导的艺术创作方法；言外之意的表意方式；追求故事完整统一的叙事性特点，以戏剧性为基础的人物命运塑造；中庸为度、节制含蓄的惰感抒情特征；充满哲理教化目的的思想倾向。

The paper constructs a two-country model in open economics to compare different monetary policy' s targeting rules and analyzes of the cases of China' s dual implicit anchors on the basis of it.

本文建立一个开放经济的两国模型比较不同的货币政策目标规则，在此基础上对中国双重隐性名义锚的情况进行分析。

On the basis of dual porosity theory,the well test interpretation model which considers the variation of krg versus the volume of liquid is also established and resolved by the implicit method numerically.

摘要通过分析凝析气藏的相图，建立了凝析液饱和度随压力降的变化规律，并回归得出了相应的公式；同时通过对气体压缩因子、黏度随压力、温度的变化，建立了这些参数和无因次压力的关系；在双重介质地层假设的基础上，建立了在试井过程中凝析气相对渗透率随凝析液饱和度变化的凝析气藏试井解释数学模型，采用隐式迭代的方法进行了求解并进行了参数敏感性分析；结果表明：凝析液的饱和度对凝析气藏试井的压力及压力导数曲线有着很大的影响，早期由于凝析液的析出，阻碍了气藏的流动，导致压力及压力导数曲线上升；在凝析液饱和度达到峰值之后，随着凝析液的挥发，凝析气的相对渗透率逐渐恢复，压力及压力导数曲线又回归到正常的径向流位置；由于裂缝和基岩之间的压力差，使得裂缝弹性储容比在测试过程中发生变化，进而影响了压力及压力导数；窜流系数和裂缝弹性储容比的变化决定了窜流段发生的早晚和程度；而基岩中气体黏度的变化使得窜流的发生稍微滞后。

At present inflation rates, we believe individual owners in medium or high tax brackets (as distinguished from tax-free entities such as pension funds, eleemosynary institutions, etc.) should expect no real long-term return from the average American corporation, even though these individuals reinvest the entire after-tax proceeds from all dividends they receive. The average return on equity of corporations is fully offset by the combination of the implicit tax on capital levied by inflation and the explicit taxes levied both on dividends and gains in value produced by retained earnings.

而以目前的通货膨涨率来看，我们相信对适用中高级距所得税率的投资人而言(除非你是透过退休基金、慈善团体等免税机构来投资)，将无法从投资一般美国企业获得任何实质的资本利得，即使他们把分配到的股利一再重复地投资下去也一样，因为其获利早已被隐藏的通货膨涨与台面上的所得税给吸收殆尽。

Don not attempt to do something which you can not to do.

不要企图做那些办不到的事情。

The expression of CTGF and TNF-αweredetected by immunochemistry and the number of Clara Cells was calculated.

光镜下观察肺组织的病理变化，采用免疫组化染色观察肺组织中结缔组织生长因子和肿瘤坏死因子-α的表达和Clara细胞的数量。