查询词典 water pollution

With the development of industry and the increase of population, the problem of heavy metal pollution in water body has become a global one.

重金属污染是水体污染的一个重要方面，随着工业的发展和人口的不断增加，水体重金属污染已经成为全球的环境问题。

This dissertation is supposed to make a simple analyses on the system related protection and the development of the water resources, and the control of the pollution and liability , and hereupon to put forward the basic legislative structure.

本文拟就长江流域水资源保护、水资源开发利用、污染控制及法律责任制度作简单的分析，提出立法的基本制度框架。

The discourse mostly discourse upon modernize boggery farm big and small shape of sty pswinery, place of crib and water fountain, spacebetw een aspect of hogpen and connection of hoggery produce modernize hoggery farm de sign must have ground consciousness retrench energy consciousness no social effe cts of pollution consciousness.

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The results showed that in nitrogen pollution water, the repair results of Eichhornia crassipes is better than Hosta ventricosa.

结果表明凤眼莲对氮污染水体的修复效果要好于紫萼玉簪。

In all treatments, removal rate ofphosphorus and phosphorus accumulation in vivo of Eichharnia crassipes are greater than Hostaventricosa. The results showed that in phosphorus pollution water, the repair results of Eichhorniacrassipes is better than Hosta ventricosa.

在各处理中凤眼莲对磷的去除率以及体内磷的累积量都要大于紫萼玉簪，说明凤眼莲对磷污染水体的修复效果好于紫萼玉簪。

The invention utilizes rocks containing various mineral matters and humus to culture soil microorganism crowd with humification function for clearing environmental pollution of livestock and poultry dung urine at the same time, processed effluent can improve sprouting rate and germinating biability of paddy seeds apparently, can be applied to organic farm production, improvement of livestock and poultry drinking water on farm, environmental improvement of hut microorganism; applied to paddy may strengthen resistance of rice blast, raise edible taste value of paddy, applied to vegetable and fruit may raise output and quality, strengthen the ability of resistance disease, reduce even avoid the use of pesticide and chemical fertilizer; applied to farm may avoid that livestock and poultry use antibiotic to reduce production accident.

利用含有各种矿物质的岩石和腐殖土培养具有腐殖化功能的土壤微生物群，在消除畜禽粪尿环境污染的同时，处理出水能够显著提高水稻种子的发芽率和发芽势，可以广泛应用于有机种植业、养殖场畜禽饮用水改善、养殖场棚舍微生物环境改善；应用于水稻可以增强水稻对稻瘟病的抵抗力，水稻食味值提高，应用于蔬菜、瓜果可以提高产量和品质，增强抵抗病害的能力，减少甚至避免农药和化肥的使用；应用于养殖场可以避免畜禽使用抗生素，减少生产事故。

Fishing to the boiling water, the activity venue mainly between the scenery lake sea, the scenery countryside, the air is not fresh, does not have the noise without the pollution, experiences personally, causes the human in high feather, completely relaxed.

钓鱼离不开水，活动场所主要在山水湖海之间，山水田园，空气新鲜，无污染无噪音，身临其境，使人精神焕发，心旷神怡。

Because the carbonyl in its structure is with strongly absorb-electron effect, so it is a kind of non-proton polarity solvent with high boiling point, high flash point and low melting point, use conveniently for many processing operation such as filtration, distillation, solvent extraction, and so on; it is with very low toxicity, so the harm to human body is inappreciable, and reduce the environment pollution; due to its very strong dissolvability, it can dissolve organic matter, inorganic matter, resin, polymer, etc., and activate all kinds of reagent, mix to dissolve the other high boiling point solvents; it is with very good stability, it is stable under the hot strong alkali and acidity condition, it is with water-resistance and light, oxygen stability.

246℃ m.p：—20℃闪点121℃ flash point： 121℃分子式：C6H12N2O molecular formula： C6H12N2O 分子量128.18 molecular weight： 128.18 二、DMPU的化学性质 Chemical character of DMPU 其结构中由于羰基具有强烈的吸电子效应，因而它是一种非质子的极性溶剂，具有高沸点、高闪点、低熔点，在过滤、蒸馏、溶剂萃取等工艺操作中使用方便；毒性极低，对人体危害微不足道，也减少了对环境的污染；由于它具有极强的溶解性，能溶解有机物、无机物、树脂、聚合物等，并对各种试剂具有活化性质，还能与其它高沸点溶剂混溶；具有极好的稳定性，在热的强碱和酸性条件下都很稳定，还具有耐水性及对光、氧的稳定性。

The definition of green technology is discussed and the representative water treatment technology is valued on the basis of green chemistry. It is believed that green technology can be defined as technology that can meet three basic requirements of advanced technical economy norms, innocuity, no environment pollution synchronously.

摘 要：探讨了绿色技术的定义并对有代表性的水处理技术进行了评价，认为绿色技术应当定义为能够同时满足技术经济指标先进、无毒和不污染环境等3项基本要求的技术。

Modern society's contribution to the contamination of our water supplies originates mainly from industrial pollution and intensive agriculture.

现代社会对我们的饮用水污染主要来源与工业污染和广泛的农业化学品的使用。

Do you know, i need you to come back

你知道吗，我需要你回来

Yang yinshu、Wang xiangsheng、Li decang,The first discovery of haemaphysalis conicinna.

1〕 杨银书，王祥生，李德昌。安徽省首次发现嗜群血蜱。