污染物质

We do not spill or dump gasoline, oil or other pollutants on land or into the water.

我们不泄漏或倾到汽油或其他污染物质到岸边或水里。

With the rapid growth of population, industry, agriculture and the rapid development of the transport industry, a growing number of contaminated material.

随着人口的急剧增长，工业、农业和交通运输业的飞跃发展，产生的污染物质越来越多。

Third-hand smoke is the residual contamination from tobacco smoke that remains after a cigarette is put out.

三手烟是指由吸烟引起的残留烟草烟尘中的残余污染物质。

Fluid flow and component transport in fractured porous media are very important for understanding metallic ore formation,oil and gas migration,and transportation of pollutes and has attracted extensive investigations in recent two decades.

：断裂多孔介质中的流体流动和组分输运过程对于理解金属成矿过程、油气运移、污染物质的输运和分布十分重要，近 2 0年来得到了广泛的研究。

Nearly 80 percent of the streams showed one or more of the contaminants.

近乎80%的河流中出现一种或者多种污染物质。

The release of water contaminants into the air results in poor air quality in a home.

水中的污染物质进入空气中导致房间中的空气质量降低。

This effort includes the development of portable, inexpensive systems capable of real-time identification of contaminants in the field.

这种努力包括便携式的、廉价的、能在现场进行污染物质实时识别的系统的开发。

The main nitrogen sources are agricultural fertilisers and pollutants in fossil fuels.

氮的主要来源是农业化肥和矿物燃料中的污染物质。

That is, those that react with other pollutants, in the presence of sunlight, to form tropospheric ozone .

也就是说，在阳光照射下，与污染物质起化学反应，来形成对流层臭氧。

Because of the complexity of the condition of groundwater dynamic force, aiming at the specific hydrologic geology condition, dynamic force condition, the pollutant migration instance of groundwater, establishing reasonable groundwater solute migration model, using computer languages, numerical simulating and visualizing the distributing State, is a cheap and effective method for predicting and preventing groundwater pollution.

由于地下水动力条件的复杂性，针对地下水特定的水文地质条件、水动力条件、污染物质运移情况，建立合理的地下水溶质运移模型，利用计算机语言，数值模拟并可视化地下水污染溶质的实时分布状态，是预测、防治地下水污染的廉价而又行之有效的方法。

Cynanchum Lingtai apricot production in the average weight 65 grams, the brightly-colored fruit, juicy rich, sweet-sour taste, sweet from the nucleolus, when the late Qing Dynasty famous Shaanxi, Gansu provinces, the Qing imperial court Tongzhi tribute for years.

灵台生产的牛心杏平均单果重65克，果实色泽鲜艳，汁多味浓，甜酸适口，离核仁甜，清末时就驰名陕、甘两省，清同治年间曾为朝廷贡品。

Chenopodium album,Solanum nigrum, and Amaranthus retroflexus were very susceptible to the herbicides. Polygonum persicaria and Abutilon theophrasti were relatively less susceptible to the herbicides, and Lycopersicon esculentum was not susceptible to it. The relationship between reduction rates of weed biomass and PPM values of weed leaves 2,4, and 6 days after treatment was established.

供试的6种杂草对该混剂的敏感性存在显著差异：红心藜Chenopodium album、龙葵Solanum nigrum和反枝苋Amaranthus retroflexus对该混剂最敏感，ED90值分别为47.65、71.67和29.17g/hm2；春蓼Polygonum persicaria和苘麻Abutilon theophrasti敏感，ED90值分别为96.91、114.20g/hm2；而番茄不敏感。