助手标题  
全文文献 工具书 数字 学术定义 翻译助手 学术趋势 更多
查询帮助
意见反馈
   selenate 在 环境科学与资源利用 分类中 的翻译结果: 查询用时:0.195秒
图标索引 在分类学科中查询
所有学科
环境科学与资源利用
化学
生物学
自然地理学和测绘学
地质学
农作物
林业
无机化工
更多类别查询

图标索引 历史查询
 

selenate
相关语句
没有找到相关双语例句
例句
为了更好的帮助您理解掌握查询词或其译词在地道英语中的实际用法,我们为您准备了出自英文原文的大量英语例句,供您参考。
  selenate
Combined application of Epin and sodium selenate had virtually no effect on selenium accumulation in the pulp but increased the microelement content in the fruit skin and roots.
      
Synthesis and Crystal Structure of the First Uranyl Selenite(IV)-Selenate(VI) [C5H14N][(UO2)(SeO4)(SeO2OH)]
      
The U(1)O6(H2O) and U(3)O6(H2O) linked through selenate groups form chains running along [
      
Synthesis and crystal structure of a new uranyl selenite(IV)-selenate(VI), [C5H14N]4[(UO2)3(SeO4)4(HSeO3)(H2O)](H2SeO3)(HSeO4)
      
Crystals of a new uranyl selenite(IV)-selenate(VI), [C5H14N]4[(UO2)3(SeO4)4(HSeO3)(H2O)]·(H2SeO3)(HSeO4) were obtained by evaporation from aqueous solutions.
      
更多          


he joint toxicities of fluoride and selenite,fluoride and selenate to daphnia magna were studied in acute tests.Additive index method and toxic unit analysis approach were used to evaluate the joint toxic effects.The results showed that the combined toxicities were antagonism in both fluoride and selenite and fluoride and selenate tests.But the antagonistric degree of fluoride and selenite to D.magna was greater than that of fluoride and selenate.The combined action degree of fluoride and selenite...

he joint toxicities of fluoride and selenite,fluoride and selenate to daphnia magna were studied in acute tests.Additive index method and toxic unit analysis approach were used to evaluate the joint toxic effects.The results showed that the combined toxicities were antagonism in both fluoride and selenite and fluoride and selenate tests.But the antagonistric degree of fluoride and selenite to D.magna was greater than that of fluoride and selenate.The combined action degree of fluoride and selenite varied with their different mixture ratios and changed in a regular way.

研究氟离子与四价硒、氟离子与六价硒对大型溞的急性联合毒性,并采用相加指数法和毒性单位分析法评价其联合效应。结果表明,氟离子与两种价态硒的联合毒性都为拮抗作用;氟与四价硒的拮抗作用程度大于氟与六价硒的作用;氟离子与四价硒在不同浓度比例下混合作用,其拮抗作用程度不同,并呈一定规律性变化

Selenium pollution in Yutangba selenium mining area in southwestern Hubei caused serious selenium intoxication of local inhabitants through the food chain. It is estimated that the selenium content taken in by each person daily in the mining area is more than 30 mg. The Yutangba selenium deposit occurs in siliceous rocks of the Permian Maokou Formation. The selenium content at shallow depths is commonly (100 - 5400) × 10-6and may reach a maximum of 8390 ×10-6, being generally (5 - 300) × 10-6 higher than that...

Selenium pollution in Yutangba selenium mining area in southwestern Hubei caused serious selenium intoxication of local inhabitants through the food chain. It is estimated that the selenium content taken in by each person daily in the mining area is more than 30 mg. The Yutangba selenium deposit occurs in siliceous rocks of the Permian Maokou Formation. The selenium content at shallow depths is commonly (100 - 5400) × 10-6and may reach a maximum of 8390 ×10-6, being generally (5 - 300) × 10-6 higher than that at the surface.This paper discusses selenium pollution cuased by weathering and burning of lime. Experiments of soluble selenium leaching of selenium ore indicated that the content of selenium leached from alkaline solutions is the highest, being 73. 60×10-6, next comes that from acid solutions, being 0. 38×10-6, and that from distilled water is the lowest, being 0. 02×10-6, Experiments of soluble selenium leaching with different time durations indicated that more selenium can be leached in a longer leaching time or in the moving leaching solution. The elemental selenium is a continuous source for the formation of selenate and selenite, It follows thus that weathering is one of factor responsible for selenium pollution. When selenium ore (stone coal )is used as fuel for burning lime, the main pollutant is selenium left in the cinder of selenium ore besides selenium oxide and hydrogen selenium. Its content was determined to be up to (600-840) × 10-6, being a few to a few dozens of times higher than the ordinary selenium content (7 - 164) ×10-6, at the surface. So after weathered and diffused, the cinder of selenium ore left after burning of lime can pollute environment seriously.The measures such as planting selenium-rich plants and burial or total utilization of the waste of selenium ore etc. can actively prevent selenium pollution at Yutangba.

本文讨论了由风化作用与首次发现的烧石灰两种因素构成的硒污染。对硒矿石的可溶性及不等时可溶性硒浸取试验表明,不断运动的,成分复杂的,具有一定酸碱度的天然水溶液对硒矿石长期作用后,能分解出大量的元素硒,这些元素硒是参与形成亚硒酸盐和硒酸盐的源泉。由此说明,风化作用是硒污染的因素之一。用硒矿石(石煤)作燃料烧石灰时,除产生有毒废气外,关键是残留在硒矿石烧渣中的硒,经测定竟是地表硒含量的数倍至数十倍,故硒矿石烧渣经风化扩散后能严重污染环境。

n order to investigate the correlation between selenate reduction and nitrate denitrification,a series of related experiments were carried out in different soil-water systems,in which a given amounts of KNO3 and Na2SeO4 solution were added,and the transformation processes of chemical speciation of selenate and nitrate were studied.The results indicated that the processes of selenate reduction and nitrate denitrification are identical in temporal and spatial changes, and the transformation...

n order to investigate the correlation between selenate reduction and nitrate denitrification,a series of related experiments were carried out in different soil-water systems,in which a given amounts of KNO3 and Na2SeO4 solution were added,and the transformation processes of chemical speciation of selenate and nitrate were studied.The results indicated that the processes of selenate reduction and nitrate denitrification are identical in temporal and spatial changes, and the transformation of their chemical speciation relates not only to a kind of organic carbon compounds and temperature, but also closely to action of nitrate reductase.

为查明土壤中硒酸盐还原作用与硝酸盐脱氮化作用的相关关系,在不同类型土-水系统中,加入一定量的KNO3和Na2SeO4溶液,观察NO和的化学形态转变过程.实验结果表明,硒酸盐的还原作用和硝酸盐的脱氮化作用在时空变化上具有一致性.的存在可促进NO的消失,NO的浓度变化影响NO对SeO还原作用的抑制作用.NO3和SeO形态的转化与有机碳化合物的种类、温度和硝酸盐还原酶的作用有密切的关系.

 
<< 更多相关文摘    
图标索引 相关查询

 


 
CNKI小工具
在英文学术搜索中查有关selenate的内容
在知识搜索中查有关selenate的内容
在数字搜索中查有关selenate的内容
在概念知识元中查有关selenate的内容
在学术趋势中查有关selenate的内容
 
 

CNKI主页设CNKI翻译助手为主页 | 收藏CNKI翻译助手 | 广告服务 | 英文学术搜索
版权图标  2008 CNKI-中国知网
京ICP证040431号 互联网出版许可证 新出网证(京)字008号
北京市公安局海淀分局 备案号:110 1081725
版权图标 2008中国知网(cnki) 中国学术期刊(光盘版)电子杂志社