氧

Two ferrocenyl and trimethylsilyl substituted cyanohydrin ethers have been prepared by the addition of trimethysilyl cyanide to two acetyl-substituted ferrocenes: 1-(1-cyano-1-trimethylsilyloxyethyl)-ferrocene (1) and 1, 1'-bis(l-cyano-1-trimethylsilyloxyethyl)ferrocene (2). The structures of these two compounds were characterized by elemental analysis, IR, 1H NMR and X-ray crystallography.

通过两种取代的乙酰基二茂铁与三甲基氰硅烷的加成反应，得到两种取代二茂铁基三甲基硅烷基氰醇醚的晶体：1-（1-氰基－1-三甲基硅烷氧基乙烷基）二茂铁(1)，1，1-二（1-氰基－1-三甲基硅烷氧基乙烷基）二茂铁(2)，用X射线单晶衍射、元素分析、红外光谱和核磁共振氢谱对分子结构进行了表征。

Stressed oxidation testing on C/SiC composites in dry and wet oxygen environments under cyclic and constant stress was conducted in the present study.

研究了干氧和湿氧两种气氛、疲劳和蠕变两种应力下C/SiC复合材料在1300℃的应力氧化行为。

The characteristics of cyclohexane oxygen-enriched oxidation were studied.

研究了环己烷富氧氧化的特征，考察了进气氧浓度的提高对反应速度、选择性、安全性和经济性的影响。

Through using Mythylene DinitrAmine as rude product, the knowledge of its reaction properties in different phases have been increased, Through using Mythylene BisAcetAmide as rude product, intermediates which include 1,3-Diacetyl -4,5-dihydroxy -1,3-diazacyclopentane and 1,3-Diacetyl- 4,5-diacetoxy-l,3-diaza cyclopentane have been obtained. 2,4,6,8-tetracetyl- 2,4,6,8-tetraaza bicyclo[3,3,0]octane which can be used to produce Bicyclo-HMX by nitrolysis was also produced. Through using Mythylene BisFormAmide as rude product, intermediates which include 1,3-Diformyl-4,5-dihydroxy- 1,3-diazacyclopentane and 1,3-Diformyl- 4,5-diacetoxy-l,3-diazacyclopentane have been abtained.

以亚甲基二硝胺为初始原料，加深了对亚甲基二硝胺在不同反应相反应特征的认识；以亚甲基二乙酰胺为初始原料，制备了中间体1，3-二乙酰基-4，5-二羟基-1，3-二氮杂环戊烷和1，3-二乙酰基-4，5-二乙酰氧基-1，3-二氮杂环戊烷，最终制备了可被直接硝解为双环HMX的2，4，6，8-四乙酰基-2，4，6，8-四氮杂双环[3，3，0]辛烷；以亚甲基二甲酰胺为初始原料，制备了中间体1，3-二甲酰基-4，5-二羟基-1，3-二氮杂环戊烷和1，3-二甲酰基-4，5-二乙酰氧基-1，3-二氮杂环戊烷。

While, it is the II mechanism that plays the main role in the therapy, that is the producing of cytotoxin singlet oxygen affected by the oxygen.

而且在光动力治疗过程中，主要是通过Ⅱ型机制起反应，即氧影响着主要的细胞毒素单态氧的产生。

This article introduces the necessary for equipping with the exhaust steam device with deaeration function in detailed,describe several arrangement structures of deaerator,and give a general instruction for the features of the exhaust steam device equipped with the surface heat exchanger.

较为详细地介绍了设置除氧功能排汽装置的必要性，阐述了除氧装置的几种布置结构，并对具有表面式换热器的排汽装置的应用特点进行了简要描述。

The reason of the fault was found by comparing the two performance indexes. Deaerator in Qinshan Ⅲ nuclear pow...

利用该方法对秦山三期核电站除氧器系统的运行数据进行分析，确定了除氧器自身的特性改变是引起凝结水流量异常的原因。

The dissertation firstly studies the deoxidizing mechanism of the deaerator and sets up a mathematic model based on conservation of mass and conservation of energy.

为改善除氧系统所存在的鲁棒性差等缺点，提高系统的稳定性，本文对智能控制技术及其在除氧系统中的应用及相关技术进行了研究。

This paper briefly introduces the structure of a new "small type""high efficiency"deaerator. The heat transfer calculation for the deaerator was done.

简要介绍了一种新研制的小型高效除氧器的结构，对该除氧器进行了传热计算。

The deoxidization process controls the pressure and water level in the deaerator.

除氧控制实质为除氧器内压力和水位的控制。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。