查询词典 polluted

In this thesis, the present situation of heavy metals pollution and the physical and chemical properties of soils and the enrichment situation of heavy metals (Cd、 Hg、 Pb and Cr) in the vegetable body in the Harbin city greenbelt was investigated and evaluated. The results were showed as follows:The four heavy metals all polluted greenbelt soil by different degree in Harbin. The pollution of hydrargyrum is the most serious and reaches to the heavy pollution. The next pollution is plumbum, cadmium and chrome.

本文针对哈尔滨市区城市绿地重金属污染状况、土壤的理化性质，以及重金属(Cd、Hg、Pb和Cr)在植物叶片的富集情况进行了分析，并且对哈尔滨市区重金属污染状况进行了综合评价，结果表明：(1)哈尔滨市绿地土壤表层这四种重金属都有不同程度的污染，其中以汞的污染最为严重，达到了重污染；其次是铅和镉，铬的污染较小。

Compared with the year of 2002, the polluted ranges of offshore marine areas, such as the estuaries and loughs expanded to some extent in 2003, with the main pollutants including: petroleum, inorganic nitrogen, activated phosphate, hydrargyrum and so on.

大部分海域海水水质基本良好，符合清洁、较清洁海水水质标准，远海、近海海水水质优于近岸；与2002年相比河口、港湾等近岸海域污染范围有所扩大，主要污染物是石油类、无机氮、活性磷酸盐和汞等。

If operate as per production regulation,qualified non-polluted agricultural products can be produced.4 The detection rate of r-BHC in the grain is 24.0%,which is within the range of standard,other BHC isomers are not detected;No BHC in vegetables;No DDT in grain and vegetables;The total detection rate of 4 types of organic phosphor pesticides is 31% in the grain and vegetables,within which the content of dichlo rovinyldimethy 1 phosphate and dimethoate is a little bit higher than the standard,but the content of Baytex and Sunithion is lower than the staneard.5 The heavy metal detection rate in the grain and vegetables are stated respectively as following:Arsenic:none,none; Chrome:8%,72.4%; Lead:6%,13%;Cadmium:none,none; Hydrargyrum :none,none.

粮食中γ一六六六的检出率为24.0％，未出现超标现象，其他六六六异构体均未测出，蔬菜中六六六未检出，粮食和蔬菜的DDT未检出；粮食和蔬菜中的四种有机磷农药总检出率为31％，其中敌敌畏、乐果出现个别超标现象，倍硫磷和杀螟松未出现超标现象。 5、重金属在粮食和蔬菜中的检出率分别是：砷：未检出、未检出，铬：8％、72.4％铅字6％、13％，镉：未检出、未检出，汞：未检出、未检出。

Along with the extended construction of ecological watercourse, varies of hydrophyte are used to purify polluted water.

随着生态型河道的推广建设，各类水生植物被用于河道水体净化，然而植被的种植改变了原先河道的水体结构，影响了水体的水流特性。

As a means of renovating polluted water, the hydrophyte treatment method has been attached importance to by domestic and foreign academes.

作为污染水体修复的一种手段，水生植物处理法已经引起国内外学术界的重视。

Even if the final large-scale natural ecosystem's ice cap has also been polluted as the Earth on.

即使作为地球上最后的大型天然生态系统的冰盖也受到了污染。

Sometimes the problem was obvious and acknowledged, such as an ill-equipped clinic or a polluted water source.

有时问题很明显而且是众所周知，例如诊所的设备落伍或水源被污染。

The experimental results indicate that the LMBP neural network has higher classification rate, more rapidly converge velocity by comparing with other improved BP algorithm and the Radial Basis Function neural network. Through the experiments of recognizing the sonar image polluted with Gaussian noise, it is proved that the LMBP neural network has good stability and better anti-noise performance.

通过与标准BP算法和几种常用改进型BP神经网络以及径向基函数网络比较，验证了用LMBP神经网络作为声纳图像识别系统中的分类器，能够提高图像的识别率，加快网络的收敛速度，通过对受不同程度高斯白噪声污染的声纳图象的识别，验证了其性能稳定，具有较好的抗噪声性能。

ABSTRACT In this thesis, the surface electrical field distribution of polluted post insulators at various stages of flashover is calculated imitatively and measured practically.

本文通过对染污支柱绝缘子闪络过程各阶段电场分布的大量仿真计算和实测，着重从"场"的角度研究了绝缘子污闪过程和污闪机理。

The solid immersion lens can be used into an optical storage system It provides the high NA of the system and uses the evanescent wave to produce extremely small optical spots Two proposals about a SIL are given out here The first one is that the protecting layer of the recording layer can be used as one part of the hemi spherical SIL So the recording layer is not polluted The second one is that a SIL can be used at same time in a double layers storage The first recording layer is used a...

固体浸没透镜用于光存储光学系统增大了光学头物镜的数值孔径，利用近场倏逝波读写，减小了光斑的直径，提高了存储密度。文中建议：(1)将半球SIL分割成两部分，其中一部分由存储媒质的保护层充当，避免直接污染记录层；(2 )在半球SIL单层读写的基础上，再将第一层记录媒质作为SIL的一部分形成超半球齐明SIL ，以实现双层存储。并对此时的近场进行了解析分折

In the chapter 2, the theoretic knowledge about the photosensitive resin and the grinding tools was firstly introduced.

第二章阐述了光固化树脂结合剂磨具的相关理论研究。

Do not use the program's indenting or margin-setting features; these will be added during typesetting.

不要使用缩排，页面边缘设置之类的选项，偶看不大懂。