氧气

Introduce the general idea: human body need all kinds of nourishment during the life(such as water, inorganic acid, protein, glycolipin, microbian mineral, oxygen),blood cycle for digestion.

内容导入：人体在生命运动中需要各种营养（水、无机盐、蛋白质、糖类脂肪、维生物矿物质，氧气），其消化吸收需通过血液循环系统。

Using upwind finite method with the technology of grapy display the artile, solves the leak air seepage and air movement diffusec equation and seepage dissipation equation of oxygen concentration variation process.

结合实例，用迎风有限元方法求解了回采采空区漏风渗流方程和氧气渗流耗散方程，从理论上说明采空区氧浓度分布的不均衡性。

In the present work poly is prepared by chemical vapor deposition polymerization from [2.2] paracyclophane. Thermal gravimetrical analysis is used to study the thermal degradation. It is found that the onset of thermal degradation of poly in air is much lower than that in N2 due to the existence of O2 in the air.

用化学气相沉积聚合法制备了聚对亚苯基二亚甲基膜，由傅立叶变换红外光谱图证实了其化学结构采用热重分析研究了PPX的热降解性能，结果表明，在空气氛围中由于氧气的参与，其热稳定性比在N2中差，热氧化降解明显。

On Earth, any natural metallic iron rusts in our wet, oxygenated environment, so we rely on iron oxides such as haematite to make steel.

在地球上湿润并充斥着氧气的环境中，任何天然的金属铁都会生锈。因此，我们依靠象赤铁矿中的氧化铁来制造钢材。

The photocatalytic degradation rate of heptene increased with increasing the initial concentration of sulfur dioxide, but maintained almost a constant beyond a certain concentration.

同时研究了庚烯和二氧化硫的初始浓度、氧气和水蒸气的不同含量及光强等因素对其光催化氧化降解的影响。

When the concentration of sulfur dioxide was fixed, the reaction rate increased separately with increasing oxygen content and water vapor content, when oxygen content was 20%, the reaction rate was the highest, while water vapor content was 444μmol/L, there was an optimum value for the photocatalytic degradation rate of heptene.

庚烯的降解速率随着二氧化硫浓度的增加而增加，最终趋于稳定。在二氧化硫浓度一定时，庚烯的反应速率分别随着氧气和水分子含量的增加而不断增大，氧含量为20%时速率最大；水分子含量为444μmol/L时速率最大。

One, corrode gas and corrode energy of life of plant of phenomenal Jiang Mou to bilge aluminous canal shoeshine, plunge into a bleed with the injector that takes syringe needle, in the analysis on appearance of gas phase color atlas, the result makes clear, in what taking gas hydric occupy 72% above, the others gas is nitrogen, not check gives oxygen.

一、腐蚀气体与腐蚀现象将某厂气胀铝管鞋油，用带针头的注射器扎通抽气，在气相色谱仪上分析，结果表明，所取气体中氢气占72%以上，其余气体为氮气，未检出氧气。

Initial experiment showed that the aromatic compounds were brominated to corresponding bromides with hydrobromic acid or bromine as brominating agent in the presence of sodium nitrite under the mild conditions.

研究发现在NaNO_2存在时，氧气能够以HBr(或Br_2)为溴化试剂，在温和条件下将芳香化合物氧化溴化生成相应的溴代芳香化合物。

The simulated results show that compared with the multi-nozzle gasifier,the gasifying flow field and the effective gases in the new gasifier is superior.In the gasifier of same capacity,the efficiency of carbon conversion of the new gasifier is more about 0.75%,and percent hydrol...

结果表明，新型水煤浆气化炉在炉内气化流场的组织和产出的有效气成分上均优于多喷嘴对置式水煤浆气化炉，在相同容量的气化炉内，新型水煤浆气化炉与多喷嘴对置式水煤浆气化炉对比，碳转化率高0.75%，水解率高近2.91%，干有效气成分高5.34%，冷煤气效率高7.09%，每产出1 000 m3有效气(CO+H2)可节省氧气20 m3，节省煤36 kg。

Not only will you not hyperventilate 『过度呼吸』 this way but you will also keep a nice steady supply of oxygen flowing through your blood stream .

说话的时候，保持呼吸缓慢而深沉，这样你不但不会呼吸过度而变得闷抑，你还可以通过血液得到平稳的氧气供给。

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。