氧

Furthermore, several bacteria genera are anaerobic or facultative anaerobic, and therefore cannot form pure cultures by ordinary streak plate method. Combination of well developed classical anaerobic microbiological techniques with modern molecular techniques, along with dynamic understanding of growth status and mode of odor production by different bacteria genera is critical for successful future studies.

此外， 猪粪尿排泄物中很多微生物是厌氧或兼性厌氧菌，无法通过普通的平板划线法而获得纯培养，今后应将传统的微生物厌氧培养方法与现代微生物分子生物学技术结合，动态了解和掌握不同菌群的生长状态及在恶臭产生过程中的作用。

The effect of additives on synthesis of xonotlite fiber with nano diameter is studied using industrial lime and quartz powder,selecting calcium chloride,strontium nitrate,zirconium oxychloride as additives.

采用工业石灰和石英粉，选用氯化钙、硝酸锶、氧氯化锆为添加剂，研究添加剂对合成纳米直径硬硅钙石纤维的影响，结果表明，几种添加剂均对生成硬硅钙石纤维有一定的帮助，加入适量的氧氯化锆添加剂，可以制备出纳米直径的硬硅钙石纤维，氧氯化锆的添加量为Zr4+/(Ca2++Si4+)=0.02时，可获得结晶良好、直径为70～100 nm的硬硅钙石纤维。

Drugs (methimazole, methylthiouracil, propylthiouracil and thiouracil); some sedatives (doxylamine succinate and phenobarbital); and some other drugs including the systemic antifungal antibiotic griseofulvin, the diuretic spironolactone, and the antibacterial sulfa drugs sulfamethazine and sulfamethoxazole.

抗甲状腺？药物（他巴唑，甲基硫氧嘧啶，丙基硫氧和硫氧嘧啶）；一些镇静剂（doxylamine琥珀和苯巴比妥），以及包括系统性真菌抗生素灰黄霉素，安体舒通的利尿一些其他药物，以及抗菌磺胺类药物和磺胺二甲嘧啶。

The current study and C and O isotope evolution are consistent with the previous research results, which provides isotopic evidence supporting the existence of an aulacogen basin alone, and furthermore are highly concordant with the C and O isotope evolutions in Belt Supergroup in North America and MidRiphean in Ural, Russia, which suggests a response to a global paleoocean geochemical setting.

研究区与天津蓟县和北京十三陵地区的中、新元古代碳酸盐岩碳、氧同位素组成与演化表现出明显的相似性，反映了它们共同受燕山裂陷槽发育的控制；同时，与北美Belt超群和俄罗斯乌拉尔里菲期碳酸盐岩碳、氧同位素组成、演变的高度协同性，又说明了中、新元古代碳酸盐岩中碳、氧同位素组成、演化响应于全球古海洋背景和地球化学条件。

A highly sensitive fluorescence quenching method for the determination of iron based on the system of iron-oxfloxacin-SDS has been developed. In NaAc-HAc medium, iron reacts with oxfloxacin and SDS to form a non-fluorescent ternary complex which can quench the fluorescence intensity of oxfloxacin.

在表面活性剂十二烷基硫酸钠存在下，铁能与氧氟沙星形成络合物而猝灭氧氟沙星分子的内源性荧光，使其荧光强度显著降低，据此，提出了铁氧氟沙星SDS体系测定铁的荧光分析新方法。

The method of respiratory chamber has been applied to study the influences of water temperature on the oxygen consumption rate,the oxygen consumption and the asphyxiation point in Carassius auratus Triploid.

用呼吸室法研究了 3种规格的湘云鲫在不同水温下的耗氧率、耗氧量和溶氧临界窒息点的变化。

The design concept is to utilize the current of the most easily turned-on center fingers to trigger the substrate of all the other fingers.

其原理为利用多指状N型金氧半电晶体中，在静电放电下最易先导通的中间之指状N型金氧半电晶体元件来对所有指状元件作基体触发，以促进多指状N型金氧半电晶体均匀导通。

By made us can't go on studying,but we have been learningEnglish by ourselves.Because we not to work age,we can only do some and typewrite and Chinese and English translate and copy.

垂直放人透明燃烧筒中，筒内有向上的移动氧氮气流，点燃试样端，随即观察燃烧现象，并与规定的极限比较其持续燃烧时间或燃烧的距离：通过不同样浓度中一系列试样的实验，可以测得最低氧浓度，氧指数法较适合用于工艺过程实验使用。

objective: to achieve the soluble expression of mn-sod gene in e.coli and assay the enzyme activity of the expressed product. methods: the coding region of superoxide dismutase was amplified using pcr method from the e.coli genome. the pcr product was cloned into puc19-t vector and sequenced.in addition,the cloned coding region of mn-sod was inserted into the expression vector pet-28a to form the recombinant plasmid pet-28a-mn-sod and was then transformed into e.coli bl21 for expression.

超氧化物歧化酶(superoxide dismutase，sod)是细胞体内歧化超氧阴离子自由基(o-2)的一个抗氧化酶，按其结合的金属性离子根据其中金属辅基的不同可分为4类：cu/zn-sod、mn-sod、fe-sod和ni-sod，它们通过催化超氧阴离子自由基0-2发生歧化反应，达到清除o-2的效果，具有防御氧毒性、增强机体抗辐射损伤能力、防衰老以及治疗某些肿瘤、炎症、自身免疫疾病等功效，广受国内外科研工作者的关注和重视[1]。

Many respiratory diseases can result in Hemoglobin Saturation being lowered in human blood. Moreover, the following factors can also lead to problems in oxygen supply, so that human hemoglobin saturation might be reduced: Automatic Organic Regulation Malfunction caused by Anesthesia, Intensive Postoperative Trauma, hurts resulted in by some medical examination and etc. In the situation, illnesses, such as light head, asthenia, vomitory and etc, might happen to patients and even endanger the patient's life.

许多呼吸系统的疾病会引起人体血液中血氧饱和度的减少，另外由麻醉引起的机体的自动调节功能失常、大手术创伤、以及有些医疗检查引起的损伤等，都可能导致病人的氧供给发生问题而降低了人体的血氧饱和度；致使病人出现头晕、无力、呕吐等症状，重者则会危及生命。

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。