氧

A series of novel dendrons with 1,3,5-triazine structure were synthesized by convergent strategy using cyanuric chloride, p-hydroxyazobenzene,β-naphthol, 1-hydroxyanthraquinone, 3,5-dihydroxybenzyl. They were the first generation p-phenyl-azo-phenyloxy-terminated dendron G1.0, the first generation naphthyloxy-terminated dendron G1.0, the first generation naphthyloxy-terminated and 1-anthraquinonoxy-cored dendron G, and the second generation naphthyloxy-terminated dendron G2.0.

以对羟基偶氮苯、β-萘酚为端基，三聚氯氰、3，5-二羟基苄醇为支化单体，1-羟基蒽醌为核心，用收敛法合成了一系列新型结构的含均三嗪环的树枝块：第一代端基为偶氮苯的树枝块G1.0、端基为萘氧基的树枝块G1.0、端基为萘氧基、中心为蒽醌的树枝块G、第二代端基为萘氧基的树枝块G2.0。

To determine the content of deoxidant timely and precisely is urgently need in the operation of boilers.

锅炉给水除氧剂含量的多少直接影响除氧效果的好坏，为此需及时准确地测定给水中除氧剂的含量。

Oxygen electrode is one of the important components in metal-air cell. The main effect factors on performance of oxygen electrode are catalysts′ oxidation and deoxidization capability and structure of oxygen electrode.

氧电极是金属空气电池的重要组成之一，影响氧电极性能的主要因素是催化剂的氧化还原性能和氧电极结构。

The company was established in 1994 by Yang Wenyuan, who is the inventor of the first generation of deoxidizer and the new generation of "998" highly efficient deoxidizer in China. After more than forty years of intensive research, he has continually made progress and obtained many internationally advanced scientific research achievements in the field of deoxidizer.

公司创立于1994年，创办人杨文渊是我国第一代除氧剂和新一代998高效能除氧剂的发明人，四十余年来潜心钻研，不断进取在除氧剂领域取得多项科研成果，达到了国际先进水平。

The result shows that the red blood cells of thalassemia HbH-CS are easy to oxygenate,but difficult to deoxygenate. The individual difference between thalassemia HbH-CS erythrocytes is obvious.

该研究在单细胞水平上，揭示了地中海贫血HbH-CS红细胞氧合、去氧能力以及细胞个体差异性，以评价其携氧功能，为诊断治疗提供一定的理论依据。

In the main response to the region in accordance with the "aeration, idle, precipitation, drainage" cycle of operation procedures, so that sewage in the "aerobic - hypoxia," repeatedly in the carbon to complete, from Nitrogen, and the "aerobic - anaerobic" repeatedly in the completion of phosphorus.

在主反应区内依照"曝气、闲置、沉淀、排水"程序周期运行，使污水在"好氧-缺氧"的反复中完成去碳、脱氮，和在"好氧-厌氧"的反复中完成除磷。

This thesis focused on some synthetic organic reactions promoted by metallic dysprosium and dysprosium alkoxides. It consists of five chapters.

中文题名金属镝和烷氧基镝促进的有机化学反应研究副题名外文题名论文作者贾瑜导师陶凤岗教授学科专业有机化学研究领域\研究方向学位级别博士学位授予单位复旦大学学位授予日期2002 论文页码总数129页关键词有机化学反应有机合成镝烷氧基镝馆藏号BSLW /2003 /O627 /15 本论文主要研究了稀土金属镝和烷氧基镝参与的有机化学反应，共分五章。

At last, we has indeed confirmed the increase of oxygen contained on the sample's surface relative to background concentration in the bulk by the measurement of ESCA as well.

文中，我们也对湿氧化法处理过的试片，进行化学分析电子光谱仪，分析表面的氧含量，结果显示相较於背景氧浓度，表面氧含量确实有增多的现象。

From 3-chloropropene bycondensation with sodium ethylate in ethanol to form 3-ethoxypropene followed by anti-Markovnikov addition with HBr inthe presence of benzoyl peroxide.

3-氯丙烯与乙醇钠在乙醇中回流制得3-乙氧基丙烯，继而在过氧苯甲酰存在下，与溴化氢经反马氏加成制得1-溴-3-乙氧基丙烷，总收率89。

The change is very distinctly of the rate of exorcize of COD in every columns, the rate of exorcize of COD is about 80% in aerobic column which better than anaerobic column.

各填埋柱渗滤液回灌前后COD的去除率变化较大，好氧柱普遍高于厌氧柱，好氧柱COD能够稳定在80%左右。

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。