水域污染

It is the most powerful means of eradicating schistosomiasis. Current method of elimination cercaria is mainly the chemical method which has many disadvantages such as drug resistance, drug dilutedness, environmental pollution and poisoning the other biology, etc. For these reasons, this paper poposed a new method of elimination through high-voltage pulsed electric field, discussed the feasibility of the new method, studied the elimination mechanisms of using different forms of electrodes, analyzed various factors which influences the effect of elimination and introduced the structure of high-voltage pulsed electric field system at the stage of laboratory. Moreover, this paper showed the security problems that should be considered during the research and experiment.

针对常用的化学药物杀灭法存在的易使尾蚴产生抗药性、水域宽广致使药效降低、污染环境、毒杀其它生物等弊端，本文提出了一种利用高压脉冲电场杀灭血吸虫尾蚴的新方法，探讨了这种电子杀灭方法的可行性，分别研究了采用锐形电极和平板电极的血吸虫尾蚴杀灭机理，分析了影响尾蚴杀灭效果的各种因素，介绍了实验阶段血吸虫尾蚴高压脉冲电场杀灭系统的构成，指出了系统研制和试验过程中需要充分考虑的安全性问题。

The proportion of conjugated CPs increases with the number of chlorine atoms in each compound, nevertheless, the proportion of conjugated CPs in PCP is less than that of TCP.

国外学者通过测定鱼胆中CPs共轭物来反映其所在水域的污染情况，但研究的多为虹鳟、虹鱼将、黑头软口鲦等本国鱼。

To control and harness the pollution of dustfall in Changchun city, we should base on the construction of the ecological city, we also should enforce afforestation construction and water construction, and then we could achieve social, economic and environmentally sustainable development.

对长春市大气降尘污染进行治理和控制，应该首先以城市生态建设为基础，加强绿化建设和水域建设，实现社会、经济和环境的可持续发展。

For this reason, how to reduce ship collision accident evocable by human misplay is exigently worth researching. The safety of navigation in inland waterway requires precise knowledge of the maneuverability of the inland waterway ship under the effect of water depth, wind and current.

如果在内河发生水上交通事故，不仅会给国家和人民生命财产造成巨大损失，而且化学品船和油船等船舶的损坏还会造成当地水域大面积污染，随之带来不可估量的环境与社会问题。

This paper discuss the pollution of Xingyun Lake rivers ,By the use of ponds space, we get the corresponding engineering measures to purify water, to reduce the load of pollutants which into the lake, to improve the water quality of estuarine waters, Finally we can prevention and cure the infectant water let into the lake.

本文针对星云湖入湖河流存在的污染问题，利用鱼塘空间，提出相应工程措施，以净化水质，降低入湖污染物负荷，有效改善河口区水域水质，实现入湖河流水污染防治的目标。

Their city's blue waters are so unpolluted that swimming and fishing are possible in the city center.

这个城市的湛蓝水域非常洁净，未受污染，在市中心都可以游泳或钓鱼。

The baiji highlights the costs of China's untrammeled economic growth, which has polluted its skies and fouled its waters.

白鳍豚的境遇凸现了中国为其经济的急速发展所付出的昂贵代价，伴随经济高速发展的是空气和水域的严重污染。

This often results in huge holes in the ground, noxious spoil-heaps and polluted watercourse s.

但这，却在大地上留下了巨大的洞陷，有毒的废土和被污染的水域。

In his April 1998 story,"Testing the Waters of Rongelap," Kristof examined marine life, including these longfin bannerfish, in the nuclear weapons-contaminated waters surrounding the Marshall Islands.

在1998年4月他的故事，&测试在朗格拉普海域&， Kristof检查海洋的生活，包括这些长鳍鱼bannerfish，在核武器――污染的水域围绕马歇尔群岛。

In his April 1998 story,"Testing the Waters of Rongelap," Kristof examined marine life, including these longfin bannerfish, in the nuclear weapons-contaminated waters surrounding the Marshall Islands.

他在1998年4月的故事，&朗格拉普的水的测试&Kristof研究海洋生物，包括这些长鳍鱼旗帜鱼，在核武器污染的水域周边马绍尔群岛。

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。