查询词典 oxygen gas

The result shows that the main factors,which affect the technical quality of the cathode assembly preparation,are surface oxidization of emissive layer,impurity pollution,doped concentration nonuniform,less variation of doped concentration gradient,the sticking stress of GaAs and glass,and the main factors,which affect the cathode activation,are the degree of vacuum for activation at lower than 8x10-8Pa,the partial pressure of H2O,CO,CO2 and C in the vacuum residial gas at higher than 10-8 Pa and the improper caesium and oxygen refining.

结果表明，影响台外工艺质量的主要因素是外延材料缺陷多、发射层表面氧化、杂质污染、掺杂浓度不均匀、掺杂浓度陡度变化小及GaAs与玻璃粘接产生的应力大；影响台内工艺质量的主要因素为阴极激活真空度低于8×10-8Pa。真空残气H2O.CO.CO2及C分压大于10-8Pa。阴极激活铯和氧源提纯不彻底。

Reducing afterblowing and using the carburant with low nitrogen content are important measure. The kinetics of nitrogen removal from liquid steel under vacuum with reaction between carbon and oxygen was studied on the multi-function induction furnace. The following conclusions were obtained by experiments: The nitrogen removal was obtained by the nitrogen transfer through the liquid steel diffusion layer at 67Pa and 110Pa pressure, and by the gas-liquid surface chemical reaction at 2000P.

结果表明：真空度对脱氮机理有影响，67Pa～110Pa时脱氮为一级反应，2000Pa时脱氮为二级反应，1340Pa时为混合控制；即使在。1％的条件下，碳氧反应亦可显著提高脱氮速度常数促进深脱氮，在RH内通过加强碳氧反应来提高脱氮率理论上是可行的；当钢液内存在内生或外来固态粒子时，有利于钢液中CO及N〓气泡的形成及排除，这时气泡内p〓≈0，有可能使钢液中氮含量低干与系统真空度平衡的氮含量。

The gas coming off the potassium chlorate is oxygen.

从氯化钾中释放出的气体就是氧气。

The limit oxygen concentration and the limit gas velocity are critical index to evaluate the flammability of materials.

极限氧气浓度和极限气流速度两个极限参数，是衡量材料可燃性的关键指标。

Objective To evaluate the effect of body position(right and left lateral decubitus positions)on arterial oxygen tension(PaO2)and the relationship between this postural effect on gas exchange and lung function.

目的 观察单侧胸腔积液患者患侧和健侧卧位对动脉血氧分压的影响以及体位对气体交换的影响与肺功能之间的关系。

The B. light touches the intermediary is one catalyst, itself does not consume, the essential component is a nanometer carbon dioxide (TI02), under the illumination, Shui who the light touches in the intermediary union air He the oxygen forms the strong oxidized in the surface oxyhydrogen free radical, can decompose in the air the noxious gas and the bacterium, and releases C02 and the water, achieves the sterilization, the air purification, to deodorize.

B。 光触媒是一种催化剂，本身并不消耗，主要成份是纳米二氧化碳（ TI02），在光照下，光触媒结合空气中的水和氧气在表面形成强氧化性的氢氧自由基，能分解在空气中的有害气体和细菌，并释放出 C02和水、达到杀菌、空气净化、除臭。

Light touches the intermediary is one catalyst, itself does not consume, the essential component is a nanometer carbon dioxide (TI02), under the illumination, Shui who the light touches in the intermediary union air He the oxygen forms the strong oxidized in the surface oxyhydrogen free radical, can decompose in the air the noxious gas and the bacterium, and releases C02 and the water, achieves the sterilization, the air purification, to deodorize.

光触媒是一种催化剂，本身并不消耗，主要成份是纳米二氧化碳（TI02），在光照下，光触媒结合空气中的水和氧气在表面形成强氧化性的氢氧自由基，能分解在空气中的有害气体和细菌，并释放出C02和水、达到杀菌、空气净化、除臭。氢氧自由基释放时模拟人体气味，有效把蚊子引过来。

JHO-2 catalyst requires low reaction temperature, has high space velocity and high deoxygenation efficiency, and the residual oxygen in the carbon monoxide gas is lower than 1ppm.

JHO-2型催化剂具有反应温度低、空速大、脱氧效率高等特点，净化后一氧化碳气体中残氧量小于1PPM 。

Some conclusions are followed:(1)the reaction ratio of boron is 12% in primary combustion;(2)the degree of agglomeration can be decreased adopting boron coated with AP;(3)the content of oxygen is very important for afterburning efficiency;(4)the afterburning efficiency will be changed with different air-gas ratio;(5)the head distance of after-burning chamber is increasing, the circumfluence in the head of after-burning chamber is stronger and the distribution of fuel backward the after-burning chamber is more well-proportioned.(6)the combustion efficiency of DR will be improved by increasing the area of fuel nozzle.(7)the angle between dual air-inlets have complex influence with the combustion of DR.

通过本项研究，取得如下结论：（1）一次燃烧硼反应比例在12～15％之间；（2）AP包覆硼，可以降低硼结团度，有利于一次燃烧喷射效率的提高，也有利于硼在补燃室进行二次燃烧；（3）进气空气中的氧含量对二次燃烧非常重要；（4）对于一定配方的含硼富燃推进剂，不同的空燃比，二次燃烧效率不同；（5）补燃室头部距离的增加能增强补燃室头部回流以及提高燃料在补燃室后段分布的均匀性；（6）在一定范围内，增加一次燃气喷嘴面积能提高冲压发动机燃料的燃烧效率；（7）进气道夹角对补燃室内燃料的燃烧影响复杂。

The carrier gas is passed through the capillary where the moisture it holds is quantitatively absorbed by the phosphorous pentoxide and decomposed electrolytically into hydrogen and oxygen by the application of a D.C.

载气气流过毛细管，在这里载气气流中的湿气将被五氧化二磷定量地吸收，通过向两电极上施加直流 70V 的电压可将吸收的湿气电解成氢和氧。

Cynanchum Lingtai apricot production in the average weight 65 grams, the brightly-colored fruit, juicy rich, sweet-sour taste, sweet from the nucleolus, when the late Qing Dynasty famous Shaanxi, Gansu provinces, the Qing imperial court Tongzhi tribute for years.

灵台生产的牛心杏平均单果重65克，果实色泽鲜艳，汁多味浓，甜酸适口，离核仁甜，清末时就驰名陕、甘两省，清同治年间曾为朝廷贡品。

Chenopodium album,Solanum nigrum, and Amaranthus retroflexus were very susceptible to the herbicides. Polygonum persicaria and Abutilon theophrasti were relatively less susceptible to the herbicides, and Lycopersicon esculentum was not susceptible to it. The relationship between reduction rates of weed biomass and PPM values of weed leaves 2,4, and 6 days after treatment was established.

供试的6种杂草对该混剂的敏感性存在显著差异：红心藜Chenopodium album、龙葵Solanum nigrum和反枝苋Amaranthus retroflexus对该混剂最敏感，ED90值分别为47.65、71.67和29.17g/hm2；春蓼Polygonum persicaria和苘麻Abutilon theophrasti敏感，ED90值分别为96.91、114.20g/hm2；而番茄不敏感。