查询词典 air pollution

This project may domestic establish the Shen Nong fragrant chrysanthemum in the forest region to plant the base, uses naturally organic breeds the fertilizer employment, the fertilizer biology fermentation well-rotted compost, the microorganism soil amelioration, the green manure to turn the pressure spoiled to raise the field, the plant disease biology integrated control, the non-pollution irrigation, to increase reduces fragrant harms technological means and so on roasting, large-scale, the wide range carries on to the Shen Nong fragrant chrysanthemum without the environmental damage, the non-pollution cultivation.

该项目可在林区境内建立神农香菊种植基地，采用天然有机腐殖肥料施用、肥料生物发酵腐熟、微生物土壤改良、绿肥翻压养田、病虫害生物综合防治、无污染灌溉、增香减害烘烤等技术手段，大规模、大范围对神农香菊进行无公害、无污染培育。

In order to ensure quality supply to meet international market requirements, and further with the international standards of agricultural products, the company in accordance with international non-pollution, green vegetables strict standards for operation, efforts to develop national lace vegetable-growing areas of cultivated land as the company's exports of vegetables, plant bases, and base the plant to carry out a unified technical guidance, unity of pesticides and fertilizers to track management, and set up base in detail the various files to ensure that the base production of vegetables achieve "non-polluting, non-" the pollution-free green food standards.

为了保证货源品质达到国际市场要求，进一步与国际农产品标准接轨，公司按照国际无公害、绿色蔬菜标准进行严格操作，努力开发全国蔬菜种植区的连片耕地作为公司的出口蔬菜种植基地，并对基地的种植进行统一技术指导，统一农药、化肥跟踪管理，并建立各个基地的详细档案，保证基地生产的蔬菜达到&无污染、无药残&的无公害绿色食品标准。

The twenty-sixth article of the constitution of our country stipulates:"the state protects and improves living and ecological environment, and prevents pollution and other social effects of pollution".

我国宪法第26条规定：&国家保护和提高生活及生态环境，并防止污染和其他公害&。

At present, most related researches are performed in artificial simulation environments. On the basis of theoretical analysis, a pollution flashover model under high altitude is proposed and the AC pollution flashover performance of standard suspension insulator XP-70 is tested and researched in the high altitude sites.

目前大多数研究是在人工模拟条件下进行的，文章通过理论分析提出了高海拔条件下的污闪模型，并在高海拔现场试验研究了标准悬式绝缘子XP-70的交流污闪特性。

Because our country at present every year the acid rain and the sulphur dioxide pollution the economic loss which creates to the ecological environment harm and the human body health influence about 110,000,000,000 Yuan, the close same year gross national product 2%, the next this kind of pollution lost also continues to increase unceasingly.

我国目前每年因酸雨和二氧化硫污染对生态环境损害和人体健康影响造成的经济损失在1100亿元左右，已接近当年国民生产总值的 2%，今后这种污染损失还将持续不断地增加。

The pollution flashover accidents take place sometimes in power system and the loss because of which is large, So it is significant to study deeply the pollution flashover performance and DC discharge model of long insulator string at high attitude.

电力系统污闪事故时有发生，且所造成的损失是巨大的，因此深入开展低气压下绝缘子串污闪特性及直流放电模型研究具有重要的学术意义和工程应用价值。

The activity of SOD in grass carp＇s liver and kidney tissues decreases first then increases and decreases once again when Cd^2＋ presents low concentration pollution, while the activity of SOD is inhibited obvious all along （p〈 0.05） when Cd^2＋ presents high concentration pollution.

Cd^2＋低浓度时，肝胰脏和肾脏组织SOD活性均为&先降后升再降&，而Cd^2＋为高浓度时SOD活性始终处于被显著抑制（P〈0.05）；鳃组织在低Cd^2＋污染时SOD活性为&先降后升&，而高浓度的Cd^2＋污染时其SOD活性为&先降后升再降&。

The tracer migration that the tracer concentration continuously injecting into semi-infinite sand column(initialization velocity is zero) and the pollutant continuously enter into aquifer through a discharging well that completely enter into the dive aquifer are two representative groundwater pollution problems ,Then this paper respectively sets above two decided solution problems and the union simulation problem of groundwater and solute as examples, from the question description, the mathematical model selection and determination, the parameters selecting to carry on the value computation, the read-write of attribute data , visualizes by the IDL programs, carries on the numerical simulation and the visualization post-processing to the above groundwater pollution problems, and according to the numerical solution and the solute migration curves, briefly analyzes and predicts the temporal and spatial distribution features and distribution range of contaminant concentration.

然后分别以半无限长沙柱中连续注入示踪剂浓度的运移、污染物通过一完全进入潜水层的排放井连续进入含水层这两个典型地下水污染定解问题及地下水流和水质联合模拟问题为例，从问题描述、数学模型选取确定、参数选取到运用IDL编程进行数值计算、属性数据读写、可视化，对上述地下水污染问题进行数值模拟和可视化的后处理，并根据数值模拟的数值结果和溶质运移曲线，对污染物浓度的分布范围及随时空变化趋势作了简要分析预测。

This paper, based on the present status of ship building and repair and source of pollution in the reservoir, provides some measures to be taken for control of pollution from those shipyards.

本文依据库区修造船业的发展现状，通过对修造船厂污染水域原因的分析，提出了修造船厂防污染管理的相关对策。

Underground water pollution ,hazard,analysis of pollution,disposal technology , prevention

关键词地下水污染、危害、污染分析、处理技术、预防

A major factor in deviation from optimal performance of the activated sludge secondary clarifier is the presence of density currents,resulting from the density difference and temperature difference.

异重流的形成是影响活性污泥系统二沉池水力学性能的主要因素，形成异重流的主要原因包括沉淀池内不均匀的污泥分布和温度分布。

You always nip it in the bud.

你总是有办法解决的。