难以处理的

Because the numerical simulation method neglects the dynamical change of penetrability and stress field during metallogenic process, it is devoid of the similitude to the reality and failed to deal with the problem too. Although the analogue experiment can simulate the transportation process of polyphase fluid in the 2D dynamical structural frame, it cant carry out the 3D experiment because of the limitation of the experimental conditions.

而定量模拟难以把握成矿期介质渗透率及成矿应力场的动态变化，使其与实际地质对象在物理性质上具有一定差距物理实验虽能处理二维动态构造形变场中流体输运问题，但由于实验条件的限制，难以处理三维空间内流体运移问题。

It is easy to deal with the selvedge while the fabric texture is simple by traditional shuttle looms,if the fabric texture is complicated, it will be difficult.

有梭织机在织比较简单组织的织物时，布边处理非常容易，但织复杂组织织物时，相对难以处理。

The produced water which was made by crude oil dehydration containing polymer, alkaline and surfactant, brought many technique problems in the water treatment process system, this made the polymer flooding and water flooding water treatment technologies difficult to suit to the disposal requirement of the special water. The developed experiment research indicated that: because of the surfactant, the semidiameter of the oil droplets in the ASP flooding is much smaller than that in polymer flooding, and the stability of the oil droplets is higher than that in polymer flooding, The viscosity and combine difficulty of the oil droplets increased, and all the changes of speciality resulted in the increased difficulty in the ASP flooding produced water disposal.

三元复合驱采出液经脱水后得到的采出水中，因含有聚合物、碱和表面活性剂，给采出水处理工艺系统带来了一系列的技术问题，使已经应用于水驱和聚合物驱采出水处理的技术难以适应这种特性的采出水的处理要求，已经开展的实验研究表明：三元复合驱采出水中由于表面活性剂的存在，使采出水中油珠的粒径远远小于聚合物驱采出水，油珠的稳定性明显大于聚合物驱采出水；由于聚合物的存在，采出水粘度增大，使油珠聚并难度增大，这些特性的变化造成三元复合驱含油污水的处理难度大于聚合物驱。

In west, there is not a generally accepted opinion, though there are much theoretical and empirical evidence, there are two theories: Dividend policy is relevant, vintner study dividend policy about dividend signaling by positive research, Jensen and Meckling created agency cost theory, they provide and analysis of the affects of agency conflicts among corporate stockholders, corporate managers and creditor; they suggest that management stock ownership can reduce agency cost by aligning their interests with shareholder's interest.

因为一定量的内部留存收益是保证公司长期发展的重要资金来源，而股利则为股东提供当期收入，股东对股利的不同偏好直接影响公司未来的股票价格，从而影响公司的发展，因此，在信息不对称的条件下，如何将公司实现的收益在股东和内部留存之间进行合理分配，以制定一个合理的股利政策，使股利的发放与公司的未来持续发展相适应，并使公司股票价格稳中有升，便成了公司管理层难以处理的实际问题，也使得对影响我国股利分配政策影响因素的研究变的尤为重要。

The existing methods of analyzing linear network are all based on interface flow, it can not describe the dynamic changes and is difficult to solve zero input of the whole network.

现有的线性网络分析方法所求的都是状态变量的断面解，难以描述整个网络的动态变化过程，并且难以处理存在零输入的线性网络。

Because of the computation load and the implementation complexity of full rank STAP are too great to be accepted and it is really very difficult to obtain enough samples to estimate the covariance matrix.

最初提出的是使用全部空域和时域进行处理的全时空的最优算法的计算量和实现的复杂度令人们难以接受，并且难以获得估计协方差矩阵所需的足够的样本数，后来的研究重点就转移到了降维处理算法上。

The thesis based on Yellow River Diversion Project. Through the research of the existing design of the supervising system of Yellow River Diversion Project, this passage pointed out some problems hard to be dealt with as follows:(1) Owing to the dispersion of control points and remote transfers of data, it cost a lot to construct the network of the supervising system and it was hard to implement the construction.(2) The connection mode of network needed to be taken into acount. Once the configuration of network changed or the nodes increased, the supervising system needed to be reconfigured.(3) Owing to the tanglesome physical communication line, the man-made communication error happened frequently.(4) When the communication malfunction occured, it needed various engineers to check and repair the fault.(5) It cost a lot to operate and maintain the supervising system.

本文以世界银行援建项目&Yellow River Diversion Project&(引黄入晋工程，编号：0015-K81062)为背景，在对引黄入晋工程的远程监控系统进行研究分析的过程中，指出了该系统在目前采用的有线光纤和有线电缆通讯技术下难以处理的一些问题：(1)由于监控点分散且传输距离较远，有线光纤和有线电缆的网络建设成本很高，实施困难；(2)需要考虑节点之间的连接形式，一旦网络结构发生变化或节点需要扩充，监控系统便需要调整，耗费大量的人力物力；(3)由于系统庞大，通讯的物理线路较为繁乱，在建设和维护阶段容易出现人为触碰等引起的通讯故障；(4)在出现通讯故障时，需要多方人员配合进行故障检测，不仅耗费人力和物力，且不利于故障排除；(5)运行和维护成本较高，需要很多运行维护人员进行大量繁杂的工作。

The plsama modification of powder like material has been carried out by adding rotating cylinder in the vacuum vessel.

普通的表面处理仪难以处理粉体材料，通过加装旋转滚筒，实现了粉体材料的表面改性处理。

The analysis result can be applied to disambiguate the high ambiguous problems in parsing process, remarkably improving the performance of parsing algorithm.

创造性地将单词词义分析引入到句法分析当中，利用词义分析的结果对句法分析中难以处理的歧义问题进行排歧，显著地提高了句法分析算法的精度。

However, it can only implement the limited operation to the spatial objects, cannot carry on transformation, index, interlink age and excavation to the spatial data, and hard integrate other information with combining map variable to set up and analysis new variable. Meanwhile, relational model in the traditional DBMS and the object- oriented modeling do not completely suit the spatial application domain. The relational model can handle topological relation well, but shows inabilities to that complicated level crossing the spatial region. Object-oriented model using software method based on the principle of the customer defined data type supports the abstract data type, especially spatial abstract data type, and possesses polymorphism and inheritances, and it can deal with topological and the layer relation, but hardly processes important continuous phenomenon in space.

GIS是当今操作有关空间信息的成熟工具和技术，但其只能对空间对象进行有限的操作，不能对空间数据进行变换、索引、链接和挖掘，难以集成其他信息来构建和分析新变量；而传统数据库管理模型中的关系模型和面向对象建模也不完全适合空间应用这一领域，关系模型能够较好地处理拓扑关系，但对表示横跨空间区域的复杂层次却无能为力；面向对象模型的软件方法支持抽象数据类型，特别是空间抽象数据类型，具有继承性和多态性，能够处理拓扑和层次关系，但难以处理空间中重要的连续性现象。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。