aerial craft pollution

In this paper the leach characters of city refuse on the earth surface is studied by means of experiments,and the law of leach variety and pollution mechanism in underground environment are analyzed too.

应用实验的方法,研究了城市垃圾在地表淋滤条件下其淋滤液的成分变化特征,分析其变化的规律以及对地下环境的污染机理。

The characteristics of leaches of solid wastes from the earth surface,the law of leaches change and pollution mechanism on underground environment are studied by means of experiments.

应用实验的方法,研究了固体废物在地表淋滤条件下其淋滤液的成分变化特征,分析其变化的规律以及对地下环境的污染机理。

The reasearch of water environment and pollution mechanism has shown the hydrologic geological conditions in this area made the pollutants infiltrate easily,the agricultural pollution and the rubbishes and feces in countryside were the main reasons for the groundwater pollution.

对本地区的水环境及污染机理研究得出,水文地质条件使污染物容易入渗,农业污染及农村粪便、垃圾是地下水受到广泛污染的主要因素,地下水的过量开采加速了地下水的污染进程。

An Experiment to Reduce the Flying-Batt of P. Tomentosa Carr. by Using Growth Regulator;

生长调节剂减轻毛白杨飞絮污染的试验

Flocculation Characteristics of the Return Sludge in Chemical-Biological Flocculation Process

化学生物絮凝工艺污泥回流对污染物的絮凝效果研究

A Study of Microflocculation-UF Treating the Micropolluted Reservoir Water;

微絮凝—超滤工艺处理微污染水库水试验研究

Study on Removing Algae by Micro-Flocculation Fiber Filtration in Treatment of Micro-Pulluted Raw Water

微絮凝—纤维过滤去除微污染水中藻类的研究

Study on SiO_2 Enhanced Coagulation of Water Dissolved Organic Pollutants;

纳米SiO_2强化絮凝处理水溶性有机污染物的应用研究

Pilot Study on Micro-flocculation-Sand-filters-UF for Treating Micro-polluted Surface Water;

微絮凝—砂滤—超滤工艺处理微污染地表水试验研究

Analysis of Interaction among Humic Acids, Aluminum Sulfate and Some Inorganic Pollutants in Water;

腐殖酸、硫酸铝絮凝剂与水体中部分无机污染物相互作用的分析

Experimental study on micro-flocculation and ultrafiltration for removal of ammonia nitrogen from weakly polluted source water

微絮凝超滤对微污染源水中氨氮去除的试验研究

Cars and planes are polluting the air, and rivers are getting dirty.

汽车、飞机在污染空气，河流也越来越脏。

This paperproposes to introduce microorganism flocculant agent to remove the secondary pollutionof waste water treatment to enhance the cleaning efficiency and lower the cost.

建议利用微生物絮凝剂处理钻井污水，以消除废水处理中的二次污染，提高净化效果，降低成本。

Protocol for the Prevention of Pollution of the Mediterranean Sea by Dumping from Ships and Aircraft

防止船舶和飞机倾弃废物污染地中海议定书

Pollution Properties of Heavy Metals in Municipal Solid Waste Incineration Fly Ash in Chongqing;

重庆垃圾焚烧飞灰重金属污染特性研究

Research on Enriched Pollutants in the Fly Ashes during Circulating Fluidized Bed Combustion;

循环流化床燃烧过程中飞灰富集污染物的研究

Pollution characteristics of mercury in incineration fly ash of municipal solid waste in Three Gorges region

三峡库区垃圾焚烧飞灰中汞的污染特性

Contaminant concentrations dynamic prediction method for aircraft cabin based on estimating emission rates

基于源项辨识的飞机座舱污染浓度动态预测

Study on leaching toxicity of pollutants in fly ash under a natural pileup

自然堆存下的飞灰污染物浸出毒性研究

It is possible, still, to breathe an air untainted and to hear the whispered passage of time.

你可能仍然可以吸一口未经污染的空气，并聆听时光流逝所发出的嘶嘶絮语。

Experiment and Applied Research on Pretreatment of Highly Concentrated Dye-printing Wastewater ―-the experiment of using the surplus sludge together with the powder ash as flocculants;

高浓度印染废水预处理试验及应用研究——利用剩余污泥协同粉煤灰作絮凝剂的试验