难以处理的

The method blurs point-like targets of the nearby distance in the focal plan, while has little influence on distant point targets. So it can solve the problem that is hard for signal processing method. The parameters and simulation results are given.

该方法使近距离类点目标在像面上成模糊像，同时不影响远距离点目标的成像，从根本上解决了采用信号处理方法难以解决的虚警问题，给出了参数计算与模拟结果。

But because of using just a fumigant in a long time and working out of line, the fumigant do little effect to pests in recent years.

但目前，绝大多数熏蒸方法都存在磷化氢发生工艺不完善，熏蒸有毒残渣难以处理等棘手的问题。

The newspaper would not print the story because it was too hot to handle and might have attracted the attention of the intelligence department.

报纸不愿意刊载那消息，困为事情难以处理，并且还可能引起情报部门的注意。

Long to set this up, but mysteriously, it didn't work.

长期处理此问题，但令人难以理解的，它不工作。

The nub of it is the difficult, often dysfunctional, relationship between baker, pastry chef and chef.

关键是面包师、点心师和厨师之间难以处理、时而失调的关系。

Chance to resist interrupt and silence is nice, but this talent is mostly a head scratcher.

15%机率避免打断施法和沉默效果是很好的，然而这个天赋却令人很难以处理。

The main jobs of this paper are as followed: 1 The reuse of the frame design technology for aircraft assembly fixtures is researched. a frame line part library is built with the templet driven technology, the reuse of the frame line part come true by the tools for instantiation and instance modification. The design resources are effectively used, some repeating work is cut. 2 Two methods to obtain the assembly feature are proposed: the straight way by the Enumeration method and the indirect way by project features to the assembly plane. All of the assembly features of the frame and the adjustable bearings are obtained by these two methods which makes the frame automatic assembly technology for aircraft assembly fixtures come true. 3 The frame automatic assembly technology aircraft assembly fixtures based on assembly features is researched. A binary tree assembly model is used to express the assembly information of the frame for aircraft assembly fixtures, the automatic assembly between the frame, the aircraft and the adjustable bearing is completed within the three steps: distribute, obtain and evaluate assembly feature. Finally, the efficiency of the frame assembly design is proved. 4The frame interpart modeling technology for aircraft assembly fixtures is researched, the intersection methods are concluded and the arithmetic of the single-cut, double-cut and inter-cut intersection is proposed, the interpart fast modeling of the frame design for aircraft assembly fixture come true. 5Based on the researches mentioned before, a sub-system of frame fast design for aircraft assembly fixture is developed on CATIA. The sub-system is used to design the aircraft assembly fixtures in a large aeronautics corporation and make a good- effect.

论文的主要工作如下： 1研究了飞机装配型架骨架设计重用技术，在总结归纳骨架线框结构类型的基础上，应用模板驱动的方法建立了骨架线框库，通过骨架线框零件的实例化和离线编辑实现骨架线框的重用，有效利用设计资源，减少重复劳动； 2提出穷举几何对象的装配特征直接获取方法，遍历零件模型的几何对象，从中捕捉所需装配特征，该方法简捷、高效；提出向装配面投影的装配特征间接获取方法，该方法在现有特征基础上生成装配特征，解决了部分装配特征难以直接获取的问题； 3研究了基于装配特征的飞机装配型架骨架自动装配技术，采用一种二叉树装配模型表达骨架的装配关系，并通过装配特征的分配、获取和赋值三个步骤，实现了骨架分别与飞机产品和可调支承的自动装配，避免了繁琐的人工交互操作，提高了骨架设计的效率和规范化程度； 4研究了飞机装配型架骨架零件间建模技术，在总结归纳骨架元件相贯处理方式的基础上，提出了骨架元件单剪切相贯、双剪切相贯和互剪切相贯的实现算法，简化了骨架相贯处理的过程； 5基于以上研究，在CATIA平台上开发了飞机装配型架骨架快速设计子系统，并应用于某大型航空企业的装配型架设计，提高了设计效率和设计质量。

If you are a parent, you understand how busy and sometimes unmanageable your daily schedule can become.

如果你是一位家长，你会理解你的日程安排可能变得多么忙碌并且难以处理。

If there is old film which is epoxy、coal epoxy、polyurethane coating on the surface, hacking off and cleaning the surface, then brush the coating directly.

B、表面处理时难以除掉的未失效韧性旧漆膜，若确认是环氧、大漆、聚氨酯等类型，可经过打毛并除去油污后直接涂刷本产品。

In the paper, a tenon-base is added under the base of the retaining wall, on the study of the choice of the parameters and formulas used in calculation and the research of theory used in calculation, method used to deal with the load, etc, the writer gives a way to crack the nut mentioned above paragraphs and presents a qualitative and quantitative analysis about them, such as the equivalent inner friction-angle and the passive press of the clay, etc.

本文在对仰斜式挡土墙设计中有关计算参数的选择、公式的选用应该注意的问题进行了研究，对河道护岸软基础上的仰斜式挡土墙采用凸榫基础处理的方法，就其计算理论、设计验算中各荷载的具体处理方法进行了较为细致的研究，提出了解决软基础上的水工仰斜式挡土墙难以解决的难题的方法，并对有水情况下粘土等效内摩擦角Ψ_D、凸榫被动土压力E_p等在计算中的取值提出了定性和定量的分析。

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。