研究人员发现的证据表明,由于北极湖泊沉积物中冰消失,硫酸盐还原细菌数量在不断增加。
VANISHING ICEIn the sediments of Arctic lakes, researchers found evidence that Numbers of sulfate-reducing bacteria are growing.
近岸的浅水条件,丰富的陆源细碎屑,局部的还原相带,是形成富铀沉积物的三个基本条件。
Nearshore shallow water environment, abundant terrestrial fine detritus, local reduction facies and zones are three cardinal conditions for the formation of uranium-rich sediments.
通过对岩心沉积物间隙水成分的研究,表明成岩环境主要为还原环境。
The study on the composition of interstitial water in the sediment shows that diagenesis environment is mainly a reductive environment.
采用分离培养和PCR对贵州阿哈湖沉积物中硫酸盐还原菌类群进行分析,并对分离纯化的一株硫酸盐还原菌进行鉴定。
Isolation culture and PCR were performed to analyze sulfate-reducing bacteria subgroups in the sediment of Lake Aha in Guizhou Province and a purified strain identified from the sample.
沉积物还原炉由钢制底板、大型水冷式钢制炉筒、电源以及电、气、真空和水等公用设施组成。
Settlings reactor consists of steel baseplate large water-cooled steel furnace cylinder power supply as well as such utilities as electricity air vacuum and water.
文中还讨论了该海域沉积物氧化还原电位的控制机理。
The controlling mechanism of REDOX potential with the sediment was discussed in addition.
长链烷基苯的检出进一步验证了当时沉积物处于较强还原环境。
The finding of long chain alkyl benzene proves the relatively strong reducing environments during deposition at that time.
本文介绍了硼氢化钾还原氢化法—原子吸收快速测定海洋沉积物和悬浮物中痕量砷的方法。
A method for rapid determination of Arsenic in Marine sediments and suspended matters by hydride generation and atomic absorption spectrophotometer is described.
通过室内模拟实验研究了氟苯尼考对海洋沉积物中硝酸盐还原酶、亚硝酸盐还原酶、碱性磷酸酶活性的影响。
Effects of florfenicol on the activities of nitrate reductase, nitrite reductase and alkaline phosphatase in marine sediment were studied in laboratory by simulation experiment.
通过对丁字湾海域沉积物氧化还原参数的测定,得出该海域沉积物主要呈还原态。
The redox parameters in the sediment of T-shaped Bay on Shandong Peninsula were determined and it was found that the sediment showed mainly reducing form.
对沉积物中孔隙水营养盐浓度随深度的变化分析,表明了沉积物孔隙水中营养盐浓度变化与氧化还原环境的关系。
Analysis of change of the nutrient concentration in porewater with depth indicates the relation between the oxidative-reductive conditions and the nutrient concentration.
沉积物中有机物的降解反应主要在还原状态下进行。
The organic matter decomposition was occurred under the anaerobic condition.
沉积物中有机物的降解反应主要在还原状态下进行。
The organic matter decomposition was occurred under the anaerobic condition.
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