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With Yangtze delta tidal flat as an example, through the analysis on the magnetic characteristics of tidal flat sediment and the study on the space distribution of heavy metal elements, this thesis discussed the impact to Shanghai sea bank brought by heavy intensity development, and the interrelation between sediment power effect and heavy metal pollution space distribution. Utilizing the advantage of artificial intelligence neural network, in conjunction with environmental chemical analysis, from the angle of view of sediment magnetic characteristics, it analyzed the connection mechanism between magnetic mines and heavy metal element within tidal sediments, and built a quantitative magnetical diagnosis model, in attempt to calculating the tidal heavy metal pollution status from the magnetic measurement data of sediments and assess it's impact to the environment.

中文题名长江口潮滩重金属污染的磁诊断模型研究副题名外文题名论文作者许羽导师俞立中教授学科专业自然地理学研究领域\研究方向资源与环境信息系统学位级别博士学位授予单位华东师范大学学位授予日期2001 论文页码总数111页关键词长江口潮滩沉积物环境磁学重金属污染馆藏号BSLW /2001 /X145 /11 本文以长江口南岸潮滩为例，通过对潮滩沉积物磁性特征的分析、重金属元素空间分布的研究，探讨了上海滨岸带高强度开发对潮滩环境质量的影响，以及沉积动力作用与重金属污染空间分布格局的联系。

In the search for the famous ancient Inca civilization, the process, they came to the magnificent Inca ruins,"Maku piece library" the ruins of the historical legacy of cultural heritage significance of these two young men had a profound impact on even the impact .

在探寻著名的古老印加文明的过程中，他们来到了宏伟壮观的印加遗址&马库。匹库&废墟，这一历史遗留的文化遗产对这两个年轻人产生了意义深远的影响甚至是冲击。

At present, the life of the tea on the Drosophila study on the impact of major black tea, green tea, Lingzhi tea, mountain Mallotus and so on, over the course of the study of fruit flies were found in tea to increase the impact of life expectancy, among the best green tea .

中文摘要：目前国内茶对果蝇寿命影响的研究主要有红茶、绿茶、灵芝茶、山苦茶等，在以上的研究过程中均发现茶叶对果蝇有提高寿命的影响，其中又以绿茶效果最佳。

In Vitro study on the impact of overexpression of RbAp46 in U937cell lineObjective To study the impact of overexpression of RbAp46 in monoblastic cell line U937. Methods Viability of transfected cells was assayed by trypan blue exclusion.Cell number was counted daily to determine the growth rate.

将处在对数生长期U937／RbAp46和U937／CMV各以2×10~5／ml浓度接种，加入TPA50ng／ml，同时并以培养基作为空白对照，培养72小时后收集细胞，流式细胞术测定细胞表面分化抗原CD11b的表达，RT-PCR分析p21mRNA的表达，流式细胞术检测细胞周期分布情况。

The double effect of high-speed multicycle impact,speed and load fluctu ant characteristics is the key factors influencing on wear resistance and multicycle impact resistance for th e high-speed automotive chain.

高速多冲以及速度与载荷交变特性的双重效应，是影响汽车用高速滚子链耐磨性和多冲抗力的关键因素。

The high-speed and multicycle impact characteristics of an automotive chain differ from other high-speed roller chain. The double effect of multicycle impact characteristics and speed, load fluctuant characteristics set up a stern claim of wear to automotive chain.

汽车链条的高速多冲特性不同于其它高速滚子链，高速下的多冲特性以及速度与载荷交变特性的双重效应，对其耐磨性能提出了苛刻的要求，而速度与载荷交变特性的影响尤为重要。

The gaps all over the new type roller can absorb more impact energy than that absorbed by the conventional roller and improve the resistance against the multicycle impact under high-speed operation to avoid its early fracture.

这种滚子周身遍布缝隙，能更多地吸收冲击能，可用来解决高速多冲作用下普通滚子耐冲击性能差、易于出现早期断裂失效的问题，并通过疲劳实验和噪声实验验证了卷制螺旋滚子的优越性。

And regular e-mail carving process differences between an ordinary e-carving process control by making-workstation with diamond engraving-pin oscillometry high speed electronic carved head impact surface rotating version, resulting in the net impact of point to form a network.

与别致电子雕镂工艺的差别别致的电子雕镂工艺是由拆版处事站把持带有金刚石雕镂针的电子雕镂脚低速振荡撞击回旋扭转的版滚筒暗不天，变不败网穴(撞击一次变不败一个网穴)。

Our curiosity and fear of impact events has increased their coverage by the world media, Peiser says, which in turn has increased the number of meteorite impact reports, even when the evidence doesn't point that way.

我们的好奇心和恐惧事件的影响，增强了他们的报道，由世界媒体表示不敬，这反过来又增加了一些陨石撞击报道，即便证据没有一点办法。

With this basic premise, in the short term, the central bank should focus on the regulation of M1, because it has a more obvious relationship with macro-economy and in terms of short-term impact, and under the impact of M1, the prices'pulsive reaction is sensitive.

同时，要密切关注M2的变动对宏观经济的影响，因为M2包含了M1，而且M2的增长与物价之间有一种长期的正向依赖，从货币供应量整个作为调控的中介目标看，它的作用是不可忽视的。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。