查询词典 heavy metal

Pb to stress factor for the trial, the use of hydroponics method of a secret Mingshan 131, Mingshan 213 , Fuding three varieties of tea tree by the heavy metal treatment, the symptoms of victims of tea andthe absorption of lead andcumulative law.

以重金属铅为试验胁迫因子，采用水培方法研究了名山131、名山213、福鼎大白三个品种茶苗经铅处理后的受害症状以及茶树对铅的吸收与累积规律。

We have used GC to follow up the formation of epoxy acid and established the acidify condition; we have done series of parallel experiments to better the pivotal condensation reaction between acid and amine; In the cyclization step, we use cheap and available reagent-Lithium amide , rather than expensive LiHMDS, to proceed the reaction; and at last, we introduced green reagent-ozone to clear the phenyl group of nitrogen to avoid using heavy metal reagent-CAN. The total yield for this method is 29.8%.

通过GC监测，确定环氧酸的最佳酸化条件；对关键的酸和胺的缩合步骤，平行试验了多种条件；在环合一步，用价廉易得的氨基锂及催化量的HMDS代替昂贵的LiHMDS进行反应；氮上苯基的脱除采用臭氧，避免了重金属试剂-硝酸铈铵的使用，总收率为29.8％。

It has important practical significance to decline biological validity and activeness of heavy metal by deactivated processing.

对畜禽粪便堆肥中的重金属进行钝化处理，降低其生物有效性和活性，具有重要的现实意义。

This paper was focus on Dianshan River which is one of the most important water sources of Shanghai. We study the distribution, speciation and transformation rule of Cu, Cd, Cr, Hg, Pb and As in sedimentary record. In addition, the history of development of industries and agriculture were also taken into account to study the heavy metal pollution history in the study area.

本文以上海的重要水源地——淀山湖为研究对象，通过对研究区沉积物中重金属元素Cu、Cd、Cr、Hg、Pb、As的时空分布规律以及它们在沉积物中随时间或沉积深度的形态分布及迁移转化规律的研究，综合考虑区域工农业发展现状和历史对沉积物中重金属元素含量及分布的影响，对区域重金属污染历史及效应进行分析论证。

Results showed that FBILS was more effective than FFB to adsorb heavy metal from aqueous solution.

研究结果显示，固定化菌体的对重金属吸附能力优於游离的菌体，而吸附能力的顺序为铅＞汞＞镉。

In this paper, the treatment of heavy metal waste water by adsorption was summarized.

综述了吸附法处理重金属废水的研究进展。

On May 12, through the construction that broad ginseng builds unit last a period of time more than one year, company of golden plain group the key is energy-saving 2008 the environmental protection that decrease a platoon tackles key problem project " contain enlarge of station of sewage disposal of heavy metal ion to be able to transform a project " affusion trial run is successful, each technology index achieved production to design craft requirement, the mark is worn the company reclaims in sewage processing use on the one pace that stepped materiality.

5月12日，经过广大参建单位历时一年多的建设，金川集团公司2008年重点节能减排环保攻关项目"含重金属离子污水处理(通过物化方法去除水中一些物质的过程)站扩能改造工程"注水试车成功，各项技术指标达到了生产设计工艺要求，标志着公司在污水治理回收利用上迈出了实质性的一步。内容来自www.ch-water.com

Using sludge to produce eco-cement would be an effective way for sludge treatment especially for the sludge with high content of heavy metal, which would aggrandize the sources of raw materials and reduce the consumption of natural resources.

以污泥为配料生产生态水泥可实现资源，能源的充分利用，对于重金属含量偏高，不宜农用的污泥是一种有效的处理方式，是变废物为再生资源的另一有效途径

Allium Sativum L. is a kind of plant which can tolerate much heavy metal stress.

大蒜是一种能够抗很高浓度重金属的植物。

Heat a 3 1/2- to 4-quart heavy metal pot or Dutch oven in the oven until sizzling hot, then remove it, using heavy mitts.

在微波炉里加热3.5夸脱至4夸脱的重金属盆或荷兰烤箱直到火热火热的，然后使用加厚手套将其移出。

But we don't care about Battlegrounds.

但我们并不在乎沙场中的显露。

Ah! don't mention it, the butcher's shop is a horror.

啊！不用提了。提到肉，真是糟透了。