问题是

In this dissertation, the flexible structure dynamics model in non-inertial frame with large overall motions is analyzed. This problem is the research base of dynamics of flexible multibody system.

本文从力学基本原理出发，分析了柔性结构在非惯性系下的动力学问题，此问题是柔性多体问题研究的基础。

The procedures for the settlement of production planning, production planning operations research, which is an important issue.

该程序用于解决生产计划问题，生产计划问题是运筹学中一个重要问题。

At present the main problem that the power electronic integration technology is faced with is how to make volume of module smaller, cheaper and more density of power, better capability of cooling, less parasitical parameter and applied in more situations. One of the main problems is the cooling of integrated module.

目前混合封装电力电子集成技术面临的主要问题是如何将模块的体积做的更小，成本更低，功率密度更大，传热性能更好，寄生参数更小及满足更多的应用场合，而其中最主要的一个问题就是集成模块的散热问题。

At present the main problem that the power electronic integration technology is faced with is how to make volume of module smaller, cheaper and more density of power, better capability of cooling, less parasitical parameter and applied in more situations.

目前混合封装电力电子集成技术面临的主要问题是如何将模块的体积做的更小，成本更低，功率密度更大，传热性能更好，寄生参数更小及满足更多的应用场合，而其中最主要的一个问题就是集成模块的散热问题。

The problems of rural area and peasants are the vital questions in the process of modernization in China.

农民问题和农村问题是中国现代化进程中的重要问题。

The numerical example shows the validipy and effectiveness in the analysis of the contact problem of tire/road interface by this approach.

轮胎 /路面的接触问题是一个强非线性问题，这决定了求解这类问题的复杂性和困难性。

Proper name and reference are two basic concerns in the philosophy of language.

专名问题及指称问题是语言哲学的基本问题。

The whole world is now concerned about public nuisance and the world tender.

全世界对公害和地球暖化等问题更加关心，环保问题是涂装行业最大的问题。

In US, this issue is a very sensitive issue and it is as sensitive as the racial issue.

在美国，这个问题是个非常敏感的问题，像我说的，像种族问题一样。

The lattice paths count- ing problems in 2-D plane are generalized to the 3-D space utilizing recurrence relation ,thus obtaining some calculating for- mulas of lattice paths.

格路计数问题是组合计数中比较重要的问题之一，利用递推关系将几个二维平面中的格路计数问题推广到三维空间中，从而得出了一些新的格路计数公式。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。