必要性

My text manage methods of film theoretics and culture study. By the way of analysing Ang Lee's experience and forming process of his cultural identity, I mean to point out the necessary and necessity of communion and introjection between different cultures in the direction of globalization, at the same time, discuss his status and effect in eliminating culture bulwark and promoting Chinese-occident cultural communion.

本文运用电影理论、文化研究等方法，通过分析李安的成长经历和文化身份的建构过程，意在指出全球化趋势下不同文化之间交流与融合的必要性和必然性，同时探讨他在消除文化壁垒、促进中西文化交流方面的地位和作用。

The necessity and its intrusiveness of bodily intrusion search make it necessary to impose a serial of restraints on the issuance and execution of the bodily intrusion search.

侵入身体采证的必要性以及其本身所具有的侵犯性，决定了侵入性身体采证的启动以及实施要受到一系列的限制。

Firstly, the recent developments in controllability and observability for switched system are reviewed. Secondly, by means of properties of invariant subspace, the controllability for switched systems with continuous-time and discrete-time subsystems, and a class of discrete impulsive switched systems is respectively investigated. Some sufficient and necessary conditions of controllability are proved. In the end, some simple criterions for controllability and observability of switched symmetric composite systems are set up.

首先介绍了切换系统能控性与能观性方面的一些重要结论；其次，用不变子空间的性质分别研究了同时含有连续子系统和离散子系统的切换系统和一类离散脉冲切换系统的能控性，建立了相应的充分性与必要性判别准则；最后，研究了切换对称组合系统的能控性与能观性，得到了此系统能控性与能观性的简单判据。

Real estate investment trust as a new tool of estate financing is necessary and feasibility in China.

房地产投资信托作为新的融资工具在中国发展具备了一定的必要性和可行性。

The outcome of international ironstone price game in which Chinese steelworks also participates in reflects the serious problem of the steel industrial organization.

从我国钢铁企业参与国际铁矿石价格博弈的结果可以折射出我国钢铁产业组织存在的问题，也再次凸显钢铁产业整合的必要性和紧迫性。

the outcome of international ironstone price game in which chinese steelworks also participates in reflects the serious problem of the steel industrial organization.it proves that it is urgent to integrate with the steel industry.

从我国钢铁企业参与国际铁矿石价格博弈的结果可以折射出我国钢铁产业组织存在的问题，也再次凸显钢铁产业整合的必要性和紧迫性。

In Chapter 1, a general review about the development and existing problems of information system and the application of risk management are presented in China, then we discuss the necessity of establishing risk management system in ISD.

论文首先总结了我国信息系统的发展情况以及存在的问题和风险管理在我国的应用情况，论述了在信息系统开发过程中建立风险管理机制的必要性。

Optimal analysis of layout of sensors gives the optimized results of sensors positions presented through an isogram of the source location .

简要概括了凡口铅锌矿深部矿床赋存条件、地压特征、地压灾害以及建立微震监测系统的必要性；对建立的16通道微震监测系统的组成、监测系统的性能、微震监测范围进行了详细介绍；通过对传感器布置优化分析，绘出传感器布置的一个优化分析结果的震源定位等值线实例图。

In addition, with the help of the Japanese government, group-immigration and group-settlement facilitated them to establish their own communities and associations, which provided the subjective substance for their isolated and independent group-life, and at some extent, reduced their necessity of participating into the mainstream society.

从日裔群体本身来说，衣锦还乡的暂居客情结，使他们不愿主动融入当地社会，从而在主观心态上制约了其同化进程；另一方面，在日本政府的协助下，群体性的移民方式，使他们往往聚族而居，形成自己的社区和社团组织，这就为其内部封闭性、独立性很强的社会生活提供了物质条件，从而削弱了日裔群体融入主流社会的客观必要性。

In this paper,the law of iterated logarithm for product sums of positive as- sociated sequences with the strong stability and the strong law of large numbers for product sums of positive associated sequences with different distributions are proved.

证明了强平稳正相协列乘积和的重对数律与不同分布正相协列乘积和的强大数律，指出了部分和服从强大数律但乘积和未必服从强大数律这一事实，并讨论了定理2中一个条件的必要性。

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。