伴随过程

Special considerations are given to spatial discretization of hyperbolic equation with non self-adjoint operator nature.

同时构造了一个用于求解此耦合过程的统一混合弱形式，并且针对其中具有非自伴随算子特性的双曲线控制方程的空间离散进行了特殊考虑。

I found that Chinese stock market index number was generally going up during the period at fact.

笔者发现从总体上看，在利率下调的连续过程中，中国股市指数相伴随的趋势是总体的向上发展。

Based on the new generation weather radar data,Micaps data,Auto-station observation data and MM5 products,a squall line gale process with disaster gale,weak precipitation and local hail occurred in Linyi on April 28,2006 is analyzed.

利用临沂新一代天气雷达观测资料，结合MICAPS资料、加密自动气象站观测资料、MM5模式数值预报产品，对2006年4月28日发生在临沂的一次以灾害性大风为主、有弱降水相伴随、局部还有冰雹发生的飑线天气过程进行了分析。

SEM photograph indicates that ultrafine powder of chinese traditional medcine take on wide particle size distribution, little fine powder and particle shape which is lumpish, and its grinding mode is volume grinding one, which go with externally grinding one.

SEM照片显示，高频振动磨制得的中药超细粉体颗粒粒度分布比较宽，细粉含量少，颗粒形状大多为块状，过程特点表明高频振动磨超细粉碎以体积粉碎模型为主，但也伴随有表面粉碎模型。

The results of numerical experiments, using the four-dimensional variational data assimilation system of the nonhydrostatic mesoscale model MM5, show that: the tangent linear model and adjoint model conducted by keeping the "on-off" switches the same as the basic state, can provide a good approximation of the first-order information to the NLM perturbation and a good descent direction for the minimization procedure; switching on and off at every other time step in the Kuo cumulus parameterization scheme don"t impact the convergence rate of cost function; the existence of the switches don"t impact improvement to the MM5 model rainfall prediction because that not only specific humidity ,but also wind, temperature and pressure are assimilated into the model.

非静力中尺度数值模式MM5的四维变分资料同化系统进行的数值试验结果表明："开关"变量保持与基态一致，所构造的切向线性模式能够提供关于非线性模式扰动的一阶近似，伴随模式所计算的梯度值能够为最小化过程提供较好的下降方向；郭氏降水参数化方案中对流每隔一个积分步的交替发生并不影响目标函数最小化的收敛速度；"开关"变量的存在也不影响将风、温度、气压和比湿结合起来同化对MM5降水预报准确性的提高。

Firstly, we give a necessary and sufficient condition for a nonnegative square matrix to be decomposed into a product of a finite number of irreducible nonnegative matrices in chapter 1. We prove it by using Frobenius normal form in combinational matrix theory and associated directed graph in graph theory. In addition, we can limit the number of factors to three, and construct every factor.

首先，在第一章中，我们给出了一个非负矩阵可以分解成有限多个不可约非负阵的乘积的充要条件，证明过程利用了组合矩阵论中的Frobenius标准型和图论中的伴随有向图，并且将乘积中的因子个数限制到三个，具体地构造出了分解式中的每个不可约非负阵。

A nuclear reaction in which nuclei combine to form more massive nuclei with the simultaneous release of energy.

核子相互结合形成更大的核子并伴随能量释放的一种核反应过程。

A nuclear reaction in which a massive nucleus splits into smaller nuclei with the simultaneous release of energy .

一个大的核子分裂为众多小核子并伴随能量释放的核反应过程。

Dr. Robert Waterston (International Human Genome Sequencing Consortium): After three billion years of evolution, and several years of work by this 16coalition, we have before us the instruction set that carries each of us from a one-celled egg, to adulthood, to the grave.

罗伯特·沃特斯顿博士（国际人类基因组测序组织）∶经过30亿年的进化，以及这些科学家们数年的研究工作，我们终于揭开了基因组织的奥秘，而它将伴随每个人的一生，从一个单细胞卵到成人时代再到死亡的过程。

Optimization of well pattern measurement and calculation of new area in Jiangsu oilfield;2. The overdevelopment of new area s following the rapid growth of China's cities resulted in worsening condition of the physical environment.

针对当前我国城市迅速发展过程中城市新区开发过热现象，以及伴随此现象所带来的新区物理环境恶化状况，有必要对城市新区开发的物理环境影响变化进行开发前的系统性预测研究，也有益于城市新区及城市整体物理环境的可持续发展。

I will endeavour to find you some assistance.

我尽力帮你找人帮忙。

At first I only know bruck is the idol of American younglings, afterwards I returned back to Taiwan ,even in Beijing last year ,I saw her poster everywhere, I was so surprised at her charm.

起初我只晓得布鲁克雷德丝是美国少男少女崇拜的偶像，后来回台湾，甚至去年在北京，居然也四处看见她的海报，才惊讶她的魅力之大。