查询词典 difficult problem

Or three deer inner parts go into a factory factory an examination a personnel to collaborate with supplier, add with the protein content low raw material three chlorine cyanotype the An get by under false pretenses combine factory, in fine must find out to arise problem of link, find out a responsibility person, this kind of matter must someone be responsible for and also only thoroughly check pure problem, punished a responsibility a person, then can be real to let three deers start to re- set up the image of race brand in the consumer in front, otherwise no one's good-bye believe this brand, can imagine, if three deer company oneself not and actively resolve a problem, the affairs will become it this time of business enterprise judgment day, have to understand, the consumer is God, 1 connect consumer life safety and healthily can arbitrarily neglect of business enterprise, end it will pay the most heavy price of for this.

还是三鹿内部的入厂出厂检验人员与供应商勾结，用蛋白质含量低的原料添加三氯氰胺蒙骗过关并出厂，总之一定要找到发生问题的环节，找出责任人，这种事一定要有人负责，也只有彻底的查清了问题，处罚了责任人，才能真正让三鹿在消费者面前重新树立起民族品牌的形象，否则没有人再会相信这个品牌，可以想象，如果三鹿公司不自己主动解决问题，这次事件将成为它的企业末日，必须明白，消费者才是上帝，一个连消费者生命安全和健康都可以任意忽视的企业，最终它将会为此付出最沉重的代价。

Set cover greedy algorithm is one of the commonly used algorithms for the test set problem. It is an open problem if the approximation ratio 2ln n+1 directly derived from the set cover problem can be improved.

集合覆盖贪心算法是测试集问题的一个常用近似算法，其由集合覆盖问题得到的近似比21nn+1能否改进是一个公开的问题。

Concept of the feasible process graph for a part was defined and the mathematic model of multi-process routes decision-making problem was set up. Thus, the problem of multi-process routes decision-making was transformed into the problem of searching optimum path in this directed graph.

给出了零件可行性工艺路线图的概念，建立了多工艺路线决策问题的数学模型，从而将零件的工艺路线规划问题转化为对零件可行性工艺路线图中具备最优值的路径搜索和寻优问题。

When solving the TNA problem based on fleet balance application, a flight pairing network model is build, by which the primary problem transferred to a directed path decomposition problem to minimize target function, and a simulated annealing algorithm is constructed.

在解决使飞机均衡使用的飞机排班问题时，本文利用航班节的网络模型将原问题转化为一个使目标函数最小的航班节编组问题，在此基础上构造了一个模拟退火算法。

In this dissertation, the author discusses the numerical solution for the direct acoustic scattering problem with the Neumann boundary condition, and pays more attentions to discuss numerical recovering the shape of the obstacle region, which is the inverse problem of the direct acoustic scattering problem with the Dirichlet or impedance boundary condition.

本文重点研究了Neumann边界条价下的声波障碍散射正问题和Dirichlet、Impedance边界条件下的声波障碍散射区域反问题的数值计算方法，得到很好的理论结果和数值结果。

In this paper,regularization method is introduced. The author pays more attentions to investigate the numerical solution for the direct acoustic scattering problem with the Dirichlet boundary condition, and the numerical recovering the shape of the obstacle region which is the inverse problem of the direct acoustic scattering problem with the Dirichlet boundary condition.

本文主要引入正则化方法，研究了针对Dirichlet边界条件的声波障碍正散射问题和声波障碍散射反问题的数值计算方法，并得到了很好的数值结果。

This problem is defined as: Given points X, Y on the elliptic curve, find z such that: X = zY The discrete logarithm problem over this group in a finite field is a good one way function because there are currently no known polynomial time attacks forsolving the problem.

这个问题是指：鉴于点X和Y的椭圆曲线，找到这样： X =模糊离散对数问题，这个集团在有限的领域是一个很好的方法之一的功能，因为目前没有任何已知的攻击forsolving多项式时间的问题。

The discrete 0-1 programming problem is translated into continuous nonlinear optimization problem by polish function, and the nonlinear optimization problem is solved by contraction algorithm.

3利用过滤函数近似处理连续体拓扑优化问题，使用缩并解法实现了对连续体拓扑优化问题的求解。

In this algorithm, at first the reactive power optimization problem is converted to integer nonlinear programming problem with discrete control variables which are solved by IGA; then by use of PDIP algorithm, the continuous variables which can match with the obtained most are solved, and the reactive power optimization is changed into a nonlinear programming problem with continuous control variables.

首先通过改进遗传算法求解无功优化问题中的离散变量，然后采用原对偶内点法求解与已获得离散变量最匹配的连续变量。

Brief the; of commonly used method that narrated research to sort solid coupling problem discussed iterative method of dry mode law, across and LS-DYNA finite yuan of software analysis law, the theoretical calculation that is problem of coupling drifting solid offerred new method and train of thought, the analysis of problem of convection solid coupling has fair referenced value.

简要叙述了探究流固耦合新问题的常用方法；讨论了干模态法、交叉迭代法以及LS-DYNA有限元软件分析法，为流固耦合新问题的理论计算提供了新的方法和思路，对流固耦合新问题的分析有一定的参考价值。

A backer of an Afghan law that critics say legalizes marital rape has rejected the international outcry as foreign meddling.

饱受批评的一项法律的拥护者说合法化的婚内暴力不会受国际舆论的干涉。

Years ago, a ancient Egyptian fleet went to the Land of punt for seeking a kind of flavor named "myrrh", and aromatic plants which has dense exotic style for the queen Hatshepsut.

3500年前的一个古埃及的舰队到&彭特之地&寻找一种叫没药的香料。