查询词典 pollution

First, select four kinds of main risks source from bigly celebrate the main risk in region source, namely the flood, drought, sand-dust weather and petroleum pollution accident, etc. According to the different a request for to habitat, study this 19 kinds of landscapes ecosystem type of the Regional induce for 7 kinds of ecosystems system: Then the marsh of bulrush, lakes and reservoirs , salt alkali wasteland, prairie, island form wood, farmland, town. The difference is proceeded by characteristic according to each type ecosystem to the analysis of four kinds of main risks source, including the certain risk all rate, delimiting the space distribute, analyzing the risk strength to the receptor etc. At proceed the revelation the different from endanger to analyze the inside, this text borrows ecosystem index number that this index sign to reflect primarily habitat the ecosystem meaning of the type of habitat the different from position, with weak an index number to show the destructibility of the habitat, from but compute each ecosystem that is lost by ecosystem system an index number.

首先，从大庆地区主要的风险源中遴选出四种主要的风险源，即洪涝、干旱、沙尘天气和石油污染等；依据不同生物类群对生境的要求，将本研究区域的19种景观生态类型归纳为7种生态系统：即芦苇沼泽、湖泡库渠、盐碱荒地、草甸草原、岛状林、农田、城镇；对四种主要风险源的进行分析，包括确定风险概率，划定空间分布，对风险受体的作用强度分析等；在进行暴露和危害分析中，本文主要借生态指数这一指标来反映不同生境类型的生态意义和地位，以脆弱度指数来体现不同生境的易损性，从而计算出各受体生态系统的生态损失度指数；由于各主要风险物质对风险受体的作用强度是不同的，对形成区域性生态风险的作用大小也有差异，因此本文采用层次分析法对主要生态风险物质进行综合评价，并把判断矩阵排序权值的合理计算问题归为—非线性化问题，并提出用基于遗传算法(GA[5])的层次分析模型进行权重分析；进行风险表征，即综合前面两个阶段的信息，对环境中风险的性质和强度以及风险评价过程中不确定性问题进行分析与描述，并划分出五级生态风险区；最后，根据划分的五级生态风险区的特征，分别提出针对各生态风险区的生态风险管理对策。

With the excessive exploitation of natural resources and grave pollution of environment, the deterioration of eco...

随着资源的过度利用和大自然的严重污染，生态环境遭受了严重的破坏。

So it is necessary to develope the control research of heavy metal pollution of rural water environment.

因此开展农村水环境的重金属污染控制研究是十分必要的。

Originally human, but the pollution of the devildom have mutated their bodies after apocalypse.

狂战士原本也是人类，但由于大灾变造成的魔界污染，使他们的身体产生了变

The process of sodium dichromate production and its pollution situation of waste water are introduced.

介绍红矾钠生产的工艺流程、废水污染情况。

Pollution could be reduced by taking advantage of ion-exchange membrane electrolytic method to produce sodium dichromate.

为从源头解决铬盐生产中环境污染的问题，亟需探索清洁高效的重铬酸钠生产技术。

The environmental pollution and operation question which comes from ammonium dichromate as photosensitizer was overcome by this sensitive material.

这种以重氮树脂为光敏剂的圆网感光材料克服了目前以重铬酸盐为光敏剂的圆网感光材料所存在的操作问题及环境污染问题。

The Dickensian view is that factories replaced a rural idyll with urban misery, poverty, pollution and illness.

在狄更斯的笔下，工厂以城市的苦难、贫穷、污染和疾病代替了农村的田园诗。

The "no-fly pollution, clean health", including the human body needs calcium, phosphorus, iron, carotene, ammonium acid, niacin, ascorbic acid and various vitamins, has a high nutritional value, which in the human body VB17 can degrade to form benzaldehyde, and then into a acid and ammonium hydride, can inhibit cancer cells die and break, with a clear role in anti-cancer Cancer

该产品"无蚊蝇污染，干净卫生"，含人体需要的钙、磷、铁、胡萝卜素、硫铵酸、尼克酸、抗坏血酸及多种维生素，有很高的营养价值，其中VB17在人体内可降解成苯甲醛，进而转化成铵得酸和氢化物，能抑制和休死癌细胞，有明显的防癌治癌作用

In this paper, we present a new method to detect pollution on the electronic devices based on the property of complex dielectric constant.

根据微波的波谱特性，提出了一种新的污秽检测方法，该方法能够确定污秽物的性质和污秽量。

Since historical times,England ,where the early inhabitants were Celts, has been conquered three times .

从有历史以来，英国，在此地早期居住的是凯尔特人，已经被征服了三次。

Bluetooth OBEX File Transfer Enables the sending and receiving of files on your phone via Bluetooth.

蓝牙OBEX文件移动允许经过蓝牙传送和接受文件。。。。