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
   selenium pollution 的翻译结果: 查询用时:0.173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
生物学
更多类别查询

图标索引 历史查询
 

selenium pollution
相关语句
  硒污染
     THE YUTANGBA SELENIUM MINING AREA IN SOUTHWESTERN HUBEI AND ORIGIN OF SELENIUM POLLUTION
     鄂西南渔塘坝硒矿区硒污染成因探讨
短句来源
     Eco-toxicology effects of soil selenium pollution on soil enzyme.
     土壤硒污染对土壤酶的生态毒理效应
短句来源
     Selenium pollution now is a global environmental problem with harmful effect on human health.
     硒污染已成为全球性的环境问题,严重威胁人类健康和环境安全。
短句来源
  “selenium pollution”译为未确定词的双语例句
     The inhibition rate of root elongation of wheat seeds could be used as a biomarker to assess the ecological risk of selenium pollution.
     应用小麦根伸长抑制率可作为化学物质生态风险评价的一项生物标志物。
短句来源
     Selenium(Se) is a naturally occurring trace element. It is essential for humans and animals but is very toxic at higher concentrations and will make the selenium pollution.
     硒是一种生命必需的微量元素,但高浓度时毒性较强且会造成环境污染。
短句来源
  相似匹配句对
     The pollution
     通常克服电磁污染的方法有屏蔽和吸收。
短句来源
     Selenium and Health
     微量元素硒与人体健康
短句来源
     Selenium and Health
     硒元素与人体健康
短句来源
     Romm Pollution
     浅论居室污染
短句来源
     At present,the metal pollution of worldwide interests are selenium, lead, and aluminum.
     在金属污染的研究方面,最引人注目的元素是硒、铅和铝。
短句来源
查询“selenium pollution”译词为用户自定义的双语例句

    我想查看译文中含有:的双语例句
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。
  selenium pollution
By utilizing the procedure, NEPA workers can be confident in their ability to understand the risk of aquatic selenium pollution and take appropriate action.
      
Validation tests conducted at three mines where selenium pollution has occurred confirmed that the procedure will accurately predict ecological risks.
      
Forest Service with a proactive capability for determining the risk of selenium pollution when it reviews mine permit applications in accordance with the National Environmental Policy Act (NEPA).
      


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。

Ecotoxic effects of selenium on the seed germination and seedling growth of wheat(Triticum aestivum L.) and rice(Oryza sativa L.) were studied by solution culture experiment.The results showed that low concentration of Se(under 0.5 mg·L~(-1)) could promote the seed germination of wheat and its seedling growth,while high concentration of Se(above 5 mg·L~(-1)) reduced the germination rate,the seedling growth and vigor and α-amylase activity markedly.The inhibition rates of seed germination indices of wheat were...

Ecotoxic effects of selenium on the seed germination and seedling growth of wheat(Triticum aestivum L.) and rice(Oryza sativa L.) were studied by solution culture experiment.The results showed that low concentration of Se(under 0.5 mg·L~(-1)) could promote the seed germination of wheat and its seedling growth,while high concentration of Se(above 5 mg·L~(-1)) reduced the germination rate,the seedling growth and vigor and α-amylase activity markedly.The inhibition rates of seed germination indices of wheat were stronger than those of rice,among which the root elongation was the most sensitive.There was significantly positive correlation between the inhibition rate of seed germination and the concentration of Se in solution.The inhibition rate of root elongation of wheat seeds could be used as a biomarker to assess the ecological risk of selenium pollution.

通过水培试验,比较研究了硒在不同浓度下对小麦和水稻种子萌发及幼苗生长的生态毒理效应。结果表明,硒在适量范围内(<0.5 mg.L-1)对种子萌发过程中各生理指标有促进作用,高剂量(>5 mg.L-1)时,对种子活力、α-淀粉酶及幼苗和根生长具有胁迫效应。硒对小麦种子发芽各指标抑制率大于水稻,硒对种子根伸长的抑制率远远大于发芽抑制率。对硒浓度与种子发芽各项指标抑制率相关分析,呈显著正相关。应用小麦根伸长抑制率可作为化学物质生态风险评价的一项生物标志物。

Selenium pollution now is a global environmental problem with harmful effect on human health.This article has summarized advances of the research on the phytoremediation techniques of the selenium polluted environment, including the application of Se accumulators,the mechanism of Se accumulation and the modification of Se accumulators into Se hyperaccumulators with biotechnology.It has pointed out that there are some deficiencies in the present study on the mechanism and the application of Se phytoremediation...

Selenium pollution now is a global environmental problem with harmful effect on human health.This article has summarized advances of the research on the phytoremediation techniques of the selenium polluted environment, including the application of Se accumulators,the mechanism of Se accumulation and the modification of Se accumulators into Se hyperaccumulators with biotechnology.It has pointed out that there are some deficiencies in the present study on the mechanism and the application of Se phytoremediation and also has given some prospective views about the researches on those aspects in the future.

硒污染已成为全球性的环境问题,严重威胁人类健康和环境安全。本文概述了环境硒污染植物修复技术的研究进展,包括硒富集植物的应用、富集硒的机理及生物技术对它们的改造。指出了当前研究在硒富集植物富集机理及田间应用时的不足;并展望了今后如何进一步寻找和使用生物技术培育硒超富集植物、探求富集机理和田间试验。

 
<< 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selenium pollution的内容
在知识搜索中查有关selenium pollution的内容
在数字搜索中查有关selenium pollution的内容
在概念知识元中查有关selenium pollution的内容
在学术趋势中查有关selenium pollution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