查询词典 decrease in population

Addition of nitrate and sulfate as electron acceptor caused a decrease in dechlorination rate.

废水中硝酸盐和硫酸盐等电子受体的存在降低了PCP的脱氯速率。

It benefits to decrease the occurrence of accident and reduce the cost of maintenance.

提高电机的监测诊断水平，有助于减少事故发生，降低维修成本，对生产具有重大的意义。

The presented method can make the field workers monitor drilling process in time,which will decrease accident rate and drilling cost,and increase drilling efficiency.

能否在程事故发生的早期，给出某种程度、某种意义上的警或警示，对于预防和控制事故的发展，最大限度减少损失，具有重大意义。

Based on practical demands of regional accident emergency management of major hazard installations, non-structural fuzzy decision method and accident consequence simulation methods are co-method to present safety management administration and related enterprises a multi-criteria decision support method, which is focused on enterprises that might be affected by the potential accident consequence of major hazard installations, for regional accident emergency management of major hazard installations, this method is aimed to optimize the management of emergency resource, promote the performance of safety management system, decrease the fatalities and property loss.

针对目前我国应对重大危险源突发事故的管理和决策主要依赖于相关领导或专家掌握的知识及经验的现状，将非结构化模糊决策方法(Non-structural Fuzzy Decision Method， NSFDM)和事故后果模拟方法相结合，以区域范围内受重大危险源潜在事故影响的企业为决策对象，以减小事故影响范围，降低事故严重程度为目标，建立起重大危险源区域事故应急决策的多准则决策方法，以期帮助安监职能部门优化配置应急救援资源，提高应急响应绩效，减少国家和人民的经济和财产损失。

Be responsible for the design and the optimization for existing and new products of this division and ensure the timeliness and accurateness so as to improve the product quality and decrease the design cost and provide prophase assurance for the punctual supply according to the requirements of contracts.

负责本部门新、老产品设计及优化设计技术工作，确保工作的及时和准确，以提高产品设计质量、降低设计成本，为公司能够按合同要求完成供货提供前期保证。

The energy efficiency of acetaldehyde ozonation increased with the decrease in energy density.

臭氧氧化乙醛的能量效率随能量输入密度的增加而减少。

The energy efficiency of acetaldehyde ozonation also increased with the decrease in energy density.

催化臭氧氧化乙醛的能量效率随能量输入密度的增加而减少。

An electron-rich acetylide ligand would render the metal center more electron-rich and hence raise the dπ orbital energy, leading to decrease energy of the MLCT excited state.

证明通过改变乙炔基配体取代基的电子效应，能够调节最低激发态MLCT态的能量。

When the pH value of less than 5, when the acid soil, the soil of pentachlorophenol adsorption with pH values decrease with the increase.

当pH值小于5，土壤呈酸性的时候，土壤对五氯苯酚的吸附随pH值减小而增大。

Because acid rain can transport excessive hydrogen ion into the soil, then cause decrease of pH value and cation saturation, accelerate acidify of soil, therefore, it is significant to study the ecological effects of combined pollution for heavy metals under intimidation of acid rain in the regions where acid rain often take place.

土壤吸附-解吸试验的土壤按照既定方案处理后，在25±1℃，土壤水分20％左右条件下培养2个月，待重金属元素与土壤的反应基本稳定后制样进行等温吸附—解吸试验，研究紫色土在单一及复合条件下镉、锌的吸附特征和酸雨胁迫下的解吸特征以及此条件下吸附一解吸与镉、锌生物有效性的关系。

Chimborazo and Cotopaxi, took me by the hand.

越过琴博腊索山和科托帕克西山。

This car is in a good condition.

这辆车的状况很好。