查询词典 oxygen-deficient

Microbiological community analysis identified two strains similar to Nitrosomonas eutropha were responsible for oxygen consumption,which were able to exist in the autotrophic anaerobic condition for long periods and protect Planctomycetes sp.from the influence of oxygen.

分子生物学实验分析发现两株和Nitrosomonas eutropha(AY123795)序列相似性高达99%的细菌存在于反应器中，其在有氧条件下能转变其代谢模式好氧生长，从而保证Planctomycetes sp。代谢所必须的厌氧条件。

Its. OH scavenging activity was nonsensitive to high-temperature and sensitive to oxygen. But treatment of 75 ℃ for 30 min could highly decrease its sensitivity to oxygen.

其清除OH的能力耐高温，但对空气敏感，但75℃、30 min处理可以显著降低葡萄伤流液对空气的敏感度。

Three main methods with lacustrine carbonates have been used to reconstruct the lake water palaeo-temperature at present. First, the technique of isotopic geological thermometer, since being put forward to reconstruct sea-water paleo-temperature, was subsequently introduced into lacustrine carbonate sediments for constructing lake-water based upon the function relationship between lake-water temperature and the oxygen isotopic compositions of lacustrine carbonate and lake-water. Second, paleo-temperature of the lake-water can be reconstructed by determining Mg/Ca values of the lacustrine ostracode shells. And third, paleo-temperature of the lake-water can be reconstructed based upon the statistic model between the oxygen isotopic composition of lacustrine carbonate and the Lake-water temperature by testing the modem hydrogeological parameters and some relevant isotopic data of the lake basin.

目前利用湖泊碳酸盐对湖泊古水温进行重建主要有三种方式，一是运用同位素地质温度计原理，利用水温与湖泊碳酸盐氧同位素值和湖水氧同位素值三者之间的函数关系，对湖泊古水温做定量研究；二是通过测定介壳[Mg(上标 2+)]/[Ca(上标 2+)]进而重建古水温；三是通过测定湖泊流域范围内现代水文气象参数及一些相关的同位素资料直接建立起湖泊自生碳酸盐氧同位素值与温度间的统计模型。

Risk factors of mortality by univariate analysis were: outborn babies, resuscitation before admission, first born baby, low pH, high oxygen index, high alveolar- arterial oxygen tension gradient (AaDO2) at admission, high Of and AaDO2 at 2 hours after admission, shock, pneumothorax, asphyxia, pulmonary hemorrhage, persistent pulmonary hypertension of newborn, and renal failure. Logistic regression analysis showed asphyxia, pneumothorax and PPHN are the most important risk factors of mortality in MAS. How to diminish these events is the key point for reducing the mortality rate of MAS.

又变项分析显示，死亡危险因子包括院外出生婴儿，黑心诊时需急救，第一胎，刚入院时的Ph、OI、AaDO2，住院后2小时的OI、AaDO2，休克、气胸、室息、肺出血、新生儿肺动脉高压；回归分析则显示窒息，气胸及新生儿肺动脉高压是死亡的危险因子，如何减少这些事故，将是降低便吸入症候群死亡的重要因素。

The structure analysis indicates that the reverse symmetry ligand H4LB molecules are linked into a 2D supermolecular network by two types of hydrogen bonds. One type occurs between the oxalamide oxygen group and the phenol hydroxyl qroup of the nearest molecule with d=2.906(2) and ∠O-H…O=151.8°. The other type is between the oxalamide nitrogen group and the oxalamide oxygen group of anther molecule with d=2.849(2),∠N-H…O=158.7°.

晶体结构研究表明配体H4L为顺式桥联分子，晶体中存在两种氢键，一种是草酰胺基团的O原子与苯环上的酚羟基形成O-H…O氢键[d=2.906(2)，∠O-H…O=151.8°]；另一种是草酰胺基团的氨基与相邻草酰胺基上的O原子形成N-H…O氢键[d=2.849(2)，∠N-H…O=158.7°]，通过上述两种氢键将化合物H4LB连接成二维网络结构。

The regulating reservoir water leakage enters the oxygen unit, through the biological degeneration function, enable the organic pollutant to obtain the thorough degeneration, the good oxygen unit enters the water to enter the precipitation unit, the precipitation unit water leakage flows automatically enters the middle basin; In the middle basin by the pump promotion to the micro flocculation unit, in the water before the residual soluble organic matter and the filtration throws the coagulant response production suspended solid which adds through the filtration pot filtration, the micro flocculation filtration water leakage enters the disinfection area, achieves the sterilization goal in the disinfection area using the chlorine dioxide strong oxidability.

调节池出水进入好氧单元，通过生物的降解作用，使有机污染物得到彻底的降解，好氧单元进水进入沉淀单元，沉淀单元出水自流进入中间水池；在中间水池由泵提升至微絮凝单元，水中残留溶解性有机物与过滤前投加的混凝剂反应生成悬浮固体通过过滤罐滤除，微絮凝过滤出水进入消毒区，在消毒区内利用二氧化氯的强氧化性达到杀菌目的。

Oxygen in the atmosphere exists due to the evolution of oxygenic photosynthesis, sometimes referred to as the oxygen catastrophe.

氧气在大气存在由于oxygenic光合作用的演变，有时指氧气浩劫。

Within the operating range in this study, the oxygen transfer coefficient using enriched oxygen aeration is 1.3 times higher than that in conventional oxygenic aeration.

采用富氧膜法制备O2体积浓度为28.8%的富氧气作为曝气源，研究了富氧气在水中的传质特性，考察了富氧气曝气对有机物降解的效果，研究了污水浓度、曝气量等因素对生物反应器效能的影响。

The phosphine was quickly oxidized by triplet oxygen to phosphineoxide with a free radical chain reaction at relatively low temperature; while at high temperature, the phosphine react with singlet oxygen through a three member ring intermediate to form phosphineoxide and phosphinate as the product.

在相对较低温度时，膦化物与基态氧发生自由基链反应，膦化物很快被氧化为氧化膦；在相对较高的温度，膦化物与激发态氧直接作用，通过三元环状中间体而最终生成氧化膦和次磷酸酯。

Visual carbon stars whose mid-infrared spectra are mainly dominated by photospheric continuum and show large excesses at 60um, represent a transition phase which follows an interruption of mass loss from the oxygen-rich phase and begins a new phase of the mass loss of carbon-rich material. Excesses at 60um in these stars are the emission from the residual of oxygen-rich material.

光学碳星的中红外能量主要来自光球，在60μm处存在超量发射，人们认为其演化阶段处在抛射富氧物质终止和新的富碳拱星壳层形成之间，其60μm超量发射就是富氧物质的残余效应。

I am accused of being overreligious," she said in her quiet, frank manner,"but that does not prevent me thinking the children very cruel who obstinately commit such suicide.""

客人们在卡罗利娜·埃凯家里，举止就文雅一些，因为卡罗利娜的母亲治家很严厉。

Designed by French fashion house Herm è s, this elegant uniform was manufactured in our home, Hong Kong, and was the first without a hat.

由著名品牌 Herm è s 设计，这件高贵的制服是香港本土制造，是我们第一套不配帽子的制服。