查询词典 anoxic

The machanism may be that 7-NI inhibits activation of nNOS and decreases the number of overproducing neuronal NO in hippocampal during anoxia,so the ability of hippicampal slices against anoxic injury is increased and neurotoxic role of neuronal NO during anoxia is definite.

作用机理可能是7-NI抑制nNOS活性降低缺氧后海马神经原性NO的过多形成，从而提高海马脑片抗缺氧损伤的能力，更加明确了缺氧早期神经原性NO的神经毒性作用。

This paper detaily discussed the technical principle of activated-sludge process and the reaction mechanism of biological nitrogen and phosphorus removal in anaerobic period,anoxic period and aerobic period.

本文系统详细的论述了活性污泥法的工艺原理以及生物除磷脱氮工艺的厌氧、缺氧、好氧反应阶段的反应机理。

The use of the phosphorus uptake and denltrification of PAOs under anoxic conditions for the realization of the simultaneous removal of nltrogen and phosphorus is a method with practical prospect for munic－ipal sewage treatment,and the establishment of the mathematical models of denitrlfication and dephosphorization by activated-sludge process benefits the popularization and application of this technofogy.

利用聚磷菌在缺氧条件下的吸磷和反硝化作用，实现氮、磷的同时去除，是具有实用前景的城市污水处理方法，而建立活性污泥法脱氮、除磷的数学模型则有利于该项技术的推广应用。

It takes about 50d for full-scale anoxic variable rate biofilter with microbe-catalyzed media to finish start-up at 22~28C. When influent flow varies between 485~737m3/d and HRT of biofilter between 7.7~5.0h (HRT of media layer between 3.9~2.6h), effluent COD is below 120 mg/L, SS is below 30 mg/L, and some of effluent BODs is slightly above 30 mg/L (the probability is about 40%) at normal temperature of 17~27C.

5以生物催化填料为载体的生产性缺氧变速生物滤池在22～28℃条件下50d左右完成启动过程；在17～27℃条件下处理城市污水，水量为485～737m~3／d，滤池HRT为7.7～5.0h(填料层HRT为3.9～2.6h)时，出水COD小于120mg／L，SS小于30mg／L，部分BOD_5略大于30mg／L(概率约为40％)。

The simulated anoxic sludge system used for the treatment of oil production wastewater was set up to study the change in richness of eubacteria and archaea by fluorescence in situ hybridization.

建立缺氧的模拟生物处理体系经过物化预处理的采油废水，利用荧光原位杂交技术跟踪了废水处理系统启动和稳定过程中真细菌和古细菌相对丰度的变化。

State Key Laboratory of Pollution Control and Resources Reuse, Tongji University, Shanghai 200092, ChinaSoil and sediments are anoxic and anaerobic environment, often containing high levels of Fe due to the interaction of iron reducing bacteria with iron oxide minerals which are widely present in subsurface.

在土壤和沉积物的自然厌氧环境中，铁氧化物可被铁还原菌等微生物异化还原产生Fe，形成的Fe/铁氧化物表面结合铁系统具有还原活性，可使有机污染物还原转化。

The Burgess Shale was deposited at the base of this cliff, probably in anoxic conditions, as indicated by the lack of bioturbation burrows, trackways, etc.

的布尔吉斯页岩沉积在该基地的悬崖，可能是在缺氧条件下，如缺乏生物扰动，以及丰富的硫铁矿。

The spiracles are bigger and more near dorsal line than all the others. Their trachea branches are taper and abundant and form short tracheoles. This gave the tufted form to the trachea, which appeared shrubby. The trachea branches that arranged in other segments gave them a tree-like look. They do not directly supply oxygen for tissues, but they suspend in the hemolymph and attach to the muscle of the heart, so that they can move in constant with the contraction of the heart muscle.②The 8th segment tracheal tufts have thinner cuticle and basal lamina than that of the other trachea, and have much pad cuticle, which is appropriate for them to move, and their basal lamina have small pores, which are favour of the permeation of gas.③Injecting the methylene blue into the larvae to label hemolymph, we observed that the hemolymph flow into the heart through the 8th segment tracheal tufts.④Normally these tracheal tufts have all kinds of hemocytes, which are abundant in the tufts. A large number of hemocytes released from tissues attach to the tufts by changing their structure when anoxic stress happen.

气管分支细短而丰富，形成气管簇，呈灌木丛状（其它各节气管则呈粗树干状分布），它不是直接给组织供氧，而是悬浮在血液中，与心肌相连接，随着心肌的收缩而不断运动；②气管簇的内膜及底膜都比其它各节的薄，且管壁内膜具有更多的适合运动的垫状表皮，底膜还有小孔结构，这有利于气体的通透；③向体内注射蓝色的亚甲基蓝标记血液发现，血液流动方向是经该气管簇后而流回心脏；④正常情况下，气管簇处有各种各样的血细胞聚集，当缺氧胁迫时有大量的血细胞从组织中释放出来，通过变形而紧贴气管簇，有利于气体的交换；⑤给体内注射无色的亚甲基蓝发现气管簇比其它各节更易变蓝，说明该处具有更高的获氧能力。

In the current study, anoxic dechlorinations of p, p'-DDT,γ-HCH, HCB in the Liao River sediment were studied under the following conditions: without any additional short chain carbon substrates or vitamin B〓; with the addition of short chain carbon sources (including sodium lactate, sodium propionate or sodium acetate); with the addition of vitamin B〓; with the addition of both short chain carbon substrates and vitamin B〓, with the addition of sodium dodecyl sulfate , a kind of surfactant; the coexistence of the three chlorinated compounds.

氯代有机物一般都是典型的持久性环境污染物，其中部分氯代有机物还是环境激素类物质，例如，滴滴涕、林丹和六氯苯等，这些氯代有机物在环境中的迁移转化一直是国际环境化学领域的热点、重点课题。氯代有机物进入环境水体后，成为沉积物吸附态有机污染物的重要成分，天然水沉积物经常处于缺氧状态。因此，研究氯代有机物在天然水体沉积物中的缺氧脱氯行为是非常必要的。

In the current study, anoxic dechlorinations of p, p'-DDT,γ-HCH, HCB in the Liao River sediment were studied under the following conditions: without any additional short chain carbon substrates or vitamin B〓; with the addition of short chain carbon sources (including sodium lactate, sodium propionate or sodium acetate); with the addition of vitamin B〓; with the addition of both short chain carbon substrates and vitamin B〓, with the addition of sodium dodecyl sulfate , a kind of surfactant; the coexistence of the three chlorinated compounds.

本文分别采用不外加碳源和维生素B〓外加碳源（包括乳酸钠、丙酸钠或乙酸钠）、外加维生素B〓以及同时外加碳源和维生素B〓的方法，考察了p，p'-DDT、γ-HCH和HCB三种氯代有机污染物单独或混合存在下，在辽河沉积物中缺氧脱氯降解的情况，主要得到以下结论

This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。