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微生物生态学
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  microbial ecology
     Application of PCR-DGGE in microbial ecology
     PCR-DGGE技术及其在微生物生态学中的应用
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     Application of denaturing gradient gel electrophoresis (DGGE) in microbial ecology
     变性梯度凝胶电泳(DGGE)在微生物生态学中的应用
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     Real-time fluorescent quantitative PCR and its application in microbial ecology
     实时荧光定量PCR及其在微生物生态学中的应用
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     Application of Molecular Methods in Microbial Ecology
     分子生物学方法在微生物生态学中的应用
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     This article reviewed the ideation ,development, key domains, main methods and the future hot fields in molecular microbial ecology .
     本文根据近年分子微生物生态学的研究进展 ,就分子微生物生态学概念的提出、发展历程、主要研究领域、主要研究方法以及未来研究热点领域作以简要综述
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  microorganism ecology
     Advances in studies on genetically engineered microorganism ecology.
     基因工程微生物生态学研究进展
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  “微生物生态学”译为未确定词的双语例句
     Application of DGGE/TGGE in Gastrointestinal Micro-ecology
     DGGE/TGGE技术在微生物生态学中的应用
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     An Emerging Method for Characterizing Microbial Ecology-T-Rflp Technique
     微生物生态学一种新研究方法-T-RFLP技术
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     Study on Microbiological Ecology of Steady Fermentation in Acidogenic Phase
     产酸相稳定发酵类型微生物生态学研究
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     Ecological studies on genetically engineered microorganism in environment.
     环境中基因工程微生物生态学研究
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     Traditional culture-based methods are limited in their capacity for microbial ecological research on soils because only a small fraction of microbial inhabitants(0.1%~1%) in soils can be cultivated.
     传统的微生物生态学研究方法只限于环境样品中极少部分(0.1% ̄1%)可培养的微生物类群,极大程度地限制了对土壤微生物群落结构的研究。
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  microbial ecology
The database will provide information that is of interest for the development of microbial ecology and biotechnology, in particular, for the prediction of biological hazard from the application of transgenic strains.
      
The role of biofilms in microbial ecology and in biotechnology is discussed.
      
Microcins play an important role in microbial ecology and are promising as antibiotics.
      
The expectant contents of the database will be useful for resolving various problems of microbial ecology and biotechnology which deal with luminescent bacteria, luminescent system derived from them, and lux-genes cloned to other organisms.
      
This process affects the microbial ecology of the gastrointestinal tract and influences gut metabolism and function.
      
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In order to understand the natural existance of Plesiomonas Shigelloides (Ps) and disease caused by Plesiomonas, we made a study on the ecology of Ps. From 398 samples of different natural waters in the environment, 99 strains of Ps were found, the average positive rate is 24.87% ,the highest positive rate was found in sewage samples. Ps was revealed in all seasons, more in summer than in winter ; Its rate of recovery being ; pigs Ps 2.56%, ducks 21.70%, fresh-water fishes 29.22%, various animals in zoo 32.35%....

In order to understand the natural existance of Plesiomonas Shigelloides (Ps) and disease caused by Plesiomonas, we made a study on the ecology of Ps. From 398 samples of different natural waters in the environment, 99 strains of Ps were found, the average positive rate is 24.87% ,the highest positive rate was found in sewage samples. Ps was revealed in all seasons, more in summer than in winter ; Its rate of recovery being ; pigs Ps 2.56%, ducks 21.70%, fresh-water fishes 29.22%, various animals in zoo 32.35%. This study showed that Ps was widely distributed in natural hosts. In human being, the positive rate of recovery was 14.70% in the population, whereas, the rate of recovery was 13.15% in diarrhoeal patients. There was no significant difference (x~2=0.40 P>0.05) between patients and the controls. However, the rate in rural districts was higher than that in the city, and in children being higher that in adult. By using a typing sera vs, 50"O" antigents,we found that the rate of classfiable types was 71.08% ,they are widely distributed into 42"O" seral types.

为了进一步认识类志贺毗邻单胞菌(Plesiomonas Shigelloides以下简称PS)及其致病本质,对Ps作了微生物生态学调查,从外环境各种自然水体标本398份,检出Ps99株,平均检出率24.87%,其中污水检出率最高。本菌属在水中一年四季均能检出,但夏季较冬季为高。从动物中检出率分别为:猪2.56%、鸭21.70%、淡水鱼29.22%、观赏动物32.35%,证明Ps具有较广泛天然宿主。在人群中检出率为14.70%,腹泻病人中检出率13.15%,与正常人群比较无显著性差异(x~2=0.40 P>0.05),农村检出高于城市,小儿高于成人。当使用全部50个O抗原诊断血清进行血清型分析,不同标本中的Ps287株中,可分型率71.08%,分布于42个O血清型,菌型分散。

Using Hungate obligate anaerobic technipue, the characteristics on microbial ecology of twophase anaerobic digestion process for UASB reactors have been investigated with synthetic wastewater of crude glucose as substrate. In acid phase, fermentative bacteria are Predominant, which reach 10~7 cells/ml, 2—3 orders of magnitude greater than H_2—producing acetogenic bacteria and methanogenic bacteria. In methanogenic phase, the numbers of three groups bacteria above are nearly the same (approximately 10~8 cells/ml),...

Using Hungate obligate anaerobic technipue, the characteristics on microbial ecology of twophase anaerobic digestion process for UASB reactors have been investigated with synthetic wastewater of crude glucose as substrate. In acid phase, fermentative bacteria are Predominant, which reach 10~7 cells/ml, 2—3 orders of magnitude greater than H_2—producing acetogenic bacteria and methanogenic bacteria. In methanogenic phase, the numbers of three groups bacteria above are nearly the same (approximately 10~8 cells/ml), which imply that the establishment of methanogenic phase depends on the growth and metabolic balance among fermentative bacteria. H_2—producing acetogenic bactera and methanogenic bacteria. Compared with the bacterial population existed in single phase process of UASB reactor as reference, the H_2—Producing acetogenic bacteria in methanogenic phase of two phase system are more than the former, which is opposite for fermentative bacteria, and the methanogens between the both reactors exhibit no significant change. This difference of microbial ecology may be one of the factor causing the both reactors to have the different operational stability to shocks of organic loading.

采用Hungate严格厌氧操作技术,以人工葡萄糖配水为基质,对二相UASB,工艺的微生物生态学特性进行了初步研究。产酸相中,发酵细菌占优势,达10~7个/ml,比产氢产乙酸细菌和产甲烷细菌高2~3个数量级。产甲烷相中,发酵细菌,产氢产乙酸细菌和产甲烷细菌含量相差不大(约10~8个/ml),因此,产甲烷相的建立依赖于三大类微生物类群的良好代谢平衡。与对照的单相UASB反应器相比,二相UASB工艺的产甲烷相反应器产氢产乙酸细菌量较高,发酵细菌量较低,产甲烷细菌量则非常接近。这种细菌生态分布的差异,可能是导致反应器运行稳定性不同的原因之一。

There are obvious shortages in the research of the fundamental theories of LABS biodegradation up to date. From the microbial ecological and physisological point of view, the authors recommended the ecological adaption of microbial community to the nonbiogenesis substance LABS and the characteristics of LABS biodegradation by the bacteria screened. It has been found that many kinds of bacteria have the ability of degrading LABS and that most of them have LABS biodegradation plasmid which encloses some important...

There are obvious shortages in the research of the fundamental theories of LABS biodegradation up to date. From the microbial ecological and physisological point of view, the authors recommended the ecological adaption of microbial community to the nonbiogenesis substance LABS and the characteristics of LABS biodegradation by the bacteria screened. It has been found that many kinds of bacteria have the ability of degrading LABS and that most of them have LABS biodegradation plasmid which encloses some important enzymes for biodegradation. The bacteria screened can use LABS as sole carbon source, so that biodegrade LABS in wastewater with high efficiency. Plesiomonas sp. 90-1 immobilized by sodium alginate can biodeg rade more than 90% of 100 ppm LABS easily, which makes the aerobic treatment of high concentration of LABS possibly.

微生物生态学和生理学等多角度地介绍了微生物群落对LAS这种非生物源物质的生态适应,以及筛选蒲株降解LAS的能力;研究表明,大多数细菌的降解能力,取决于降解性质粒的存在。筛选菌株以LAS为唯一碳源生长,可高效地去除污水中的LAS。用海藻酸钠固定化的筛选菌株PLesiomonas sp.90-1,还可高效降解100ppm的LAS废水,去除率在90%以上,实现了高浓度LAS废水的好氧处理。

 
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