查询词典 water pollution

They should wear eyeshade , drag a rope with a rubber band on it and then pick up the nuclear matter with it, but can't touch the N-pollution area and must make sure the water not overflow.

每个小组指派4个成员作为特种部队成员，他们需戴上眼罩，然后特种部队成员每人牵着一根绳子去把核物质取出，但是不能接触禁区，杯子中的水也不能溢出。

They should wear eyeshade , drag a rope with a rubber band on it and then pick up the nuclear matter with it, but cannot touch the N-pollution area and must make sure the water not overflow.

每个小组指派4个成员作为特种部队成员，他们需戴上眼罩，然后特种部队成员每人牵着一根绳子，去把核物质取出，但是不能接触禁区，杯子中的水也不能溢出。

But under bad condition, quantity of the flagellate increase and water become pollution.

但在不良条件下，鞭毛虫的数量增加，出水浑浊。

The product is a kind of high concentrated cationic flocculent, which can be used conveniently, and do not produce secondary pollution. It is high effective with small dosage. The product can be used in waste water treatment, in the meantime, it also can be used on correlative industry procedure for improving efficiency, and reducing the cost.

合成的产物是一种高效浓度的阳离子型絮凝剂，使用方便，不产生二次污染，用量小，可用于各种污水处理，同时还可用于有关工业生产工艺中以提高效率，降低消耗。

This paper introduces the principle and history of Ultraviolet Disinfection Technology and its main functions, such as broad-spectrum sterilization,Effectively killing of giardiasis and Cryptosporidium Hominis, and advanced oxidation process,which respectively solved a difficult problem in water treatment domain, namely By-products of disinfection, threat of Giardiasis and Cryptosporidium Hominis, and refractory biodegradation organic compounds pollution.

本文概述了紫外线消毒技术的原理及发展概况，详细介绍了紫外线技术在水处理领域的三大功效：即广谱杀菌，有效杀灭贾第鞭毛虫和隐孢子虫，以及高级氧化功能，这些功能分别解决了水处理领域的三大难题：消毒副产物问题，贾第鞭毛虫和隐孢子虫的抗氯性问题，以及难降解有机物污染问题。

Hydrocyclone has a good prospect in the treatment of ballast water due to its unique advantages such as handiness and safety in operation, cost effective and no pollution associated.

旋流分离方法以其操作简单、运行安全、成本合理、不会产生新的污染等独特的优越性在船舶压载水的处理中具有光明的应用前景。

Pollution can be defined as an undesirable change in the physical,chemical,or biological characteristics of the air,water,or land that can harmfully affect the health,survival,or activities of humans or other living organisms.

污染可以被定义为有害影响健康，生存，活动的人或其它生物体的空气，水，或土地的物理，化学或生物特性的不应该有的变化。

It employs carbon dioxide as carbon source to replace traditional sugar, the concentration is controlled to be 2000- 3000ppm, takes light transmission, ventilating and water- proof fluoroethylene resin film as container, and gets tissue culture sprout and replanting sprout of chrysanthemum, which are characterized by largest plant height, largest leaf number, root number, longest root length and largest dry net weight of haulm and root, high rate of emergence and little pollution rate.

本发明提供了一种无糖培养菊花的方法，采用二氧化碳作为碳源，替代传统的糖，控制释放浓度为2000～3000ppm，采用透光性好、透气不透水的氟乙烯树脂膜为容器，在此种培养条件下，不同品种的菊花组培苗和组培后移栽苗在株高、叶数、根数、最大根长、茎叶部分和根部部分的干鲜重最大，出苗率高，污染率最低。

"And the body's answer to pollution is water," says Antony Haynes .

安东尼·海恩斯说：往往身体对此的反映是'水分'。

Now the fresh waters of the whole world all in the decrease, people are a great deal of of the pollution headwaters make water continuously reduced.

现在全世界的淡水都在减少，人们大量的污染水源使水不断减少。

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。