趋

in pearl river delta region,water environmental contamination featured big amount and mixed types and centralization of pollutant discharge with latent combined pollutants,striding boundary pollution,severe municipal pollution,the trend of regional pollution being extended from cities to rural area,infall of salty tide in recent years.as a result,the unwatered complexion was hastened due to bad water quality.the factors of water environmental contamination were analyzed as the natural factors including especial hydrographic net distributed pattern,water body runoff characteristic,water resource distributive regional difference,infall of ocean tide,and so forth; the artificial factors as inconsequence of economic development mode and distribution of industry and cities planning,lagging environmental infrastructure,indifferency of environmental consciousness,dissonance of economic development and environmental protection.

珠江三角洲地区水环境污染特点表现为：污染物排放量大、类型杂且集中，潜在复合污染出现，跨界污染突出，城市污染依然严重，并呈现出从城市向农村蔓延的区域性污染趋势，加上近几年咸潮入侵加剧，使区域水质型缺水的局面更趋紧张。造成这种污染局面的因素：一方面受控于区域内特殊的河网分布格局，水体径流特征、水资源分配的地区性差异以及海潮入侵等自然因素；另一方面也反映了区域经济发展模式，工业布局和城市规划不尽合理，环境基础设施滞后，环境意识淡薄，经济发展与环境保护不协调等人为因素所致。

By combining electromagnetic theory with condensed state physics, we studied the electric skin effect, which consists of the distribution of conductor's induced charge on the surface of the conductor under the state of electrostatic equilibrium, the skin effects of the alternating current and super current.

电趋肤效应包括处于静电平衡状态的导体上感应电荷在导体外表面上的分布，交流电流在导体外表面层中的分布和超导电流在穿透层(处于超导态的载流超导体的外表面)中的分布。

This paper describes the design of large power detachable inductor and its application in zinc smelting induction furnace and prospects the wide application and developing trend in the future.

本文介绍了大功率可拆式感应体的设计及其在熔锌感应电炉中的应用情况，同时展望了其广阔的应用前景和发展趋

The results show that the ratio of the released elastic energy to the damage dissipative energy can be served as a sensitive precursor of catastrophe. Furthermore the value of the non-dimensional ratio has a similar tendency to be 1 with different responses in the two failure modes, that is, the response function R always decreases in the gradual mode, while increases and tends to be infinite at the catastrophic point of the failure.

研究发现在灾变性破坏和非灾变性的渐进式破坏两种失效模式中，虽然系统中卸载所贡献的弹性能增量与损伤消耗和释放的能量增量的比值都有趋向于1的趋势，但是两者的趋近方式不同：灾变性破坏时表征能量比随控制变量变化特征的响应函数R有一个上升段，在灾变破坏点$R$趋向于无穷大，而非灾变性破坏中$R$始终是减小的。

In the limit, as the component point masses become "infinitely small", this entails

在极限上，当组成质点趋近于"无限小"时，将需要求出两

If justice prefers logic in rules to summarization of practice, law will lose its intelligibility and validity.

正义如果趋从于规则中的逻辑而不注重实践经验的总结，法律就会渐渐地失去其可理解性和合法性。

With the development of globalization and the intension of competition.

同时，农业的外部环境更趋复杂和不稳定，尤其是我国这样一个农业大国。

However, along with the acceleration of higher educations popularization and globalizaton, intercollegiate competition is becoming intense.

但是，随着高等教育大众化、国际化进程的加快，高校间的竞争更趋激烈。

Even in their space of impression have many different bicycle culture intermix historical-now-future.

其所感觉到的街道空间与时间上亦有所变化，如此越趋普及的现象，所造成的不仅只是外在街道环境的改变，更是个人生活方式的改变。

Results Compared with the norm,the personality characteristic of students in Hubei is more introversive and instable.

结果 (1)与全国常模相比，湖北省中小学生性格更趋内向、不稳定。

It has been put forward that there exists single Ball point and double Ball points on the symmetrical connecting-rod curves of equilateral mechanisms.

从鲍尔点的形成原理出发，分析对称连杆曲线上鲍尔点的产生条件，提出等边机构的对称连杆曲线上有单鲍尔点和双鲍尔点。

The factory affiliated to the Group primarily manufactures multiple-purpose pincers, baking kits, knives, scissors, kitchenware, gardening tools and beauty care kits as well as other hardware tools, the annual production value of which reaches US$ 30 million dollars.

集团所属工厂主要生产多用钳、烤具、刀具、剪刀、厨具、花园工具、美容套等五金产品，年生产总值3000万美元，产品价廉物美、选料上乘、质量保证，深受国内外客户的青睐