氧化过程

Nitric oxide produced by PMA activated macrophages was released quickly, and then went down to a lower level. This process was related closely to the catonic amino acid transporter Y〓.

我们发现PMA激活的巨噬细胞产生一氧化氮有快速释放-速度下降的过程，并且这一过程与阳离子氨基酸转运系统Y〓密切相关。

The process of cell oxidation is that of human consenescence.

细胞被氧化的过程，就是人自身衰老的过程。

On the other hand, in catalytic oxidation the cyclohexyl hydroperoxide decomposed rather quickly, and then accelerated the reaction.And during the reaction, the concentration of cyclohexyl hydroperoxide kept very low and the chain propagation became the rate limiting step.

而在催化剂存在的情况下，环己基过氧化氢分解非常迅速，环己基过氧化氢浓度在整个反应过程中稳定在一个很低的水平，反应由氧化生成酮的链传递反应过程控制。

The manufacture of formaldehyde from the oxidative dehydrogenation of methanol is a very important industrial pro...

甲醇氧化脱氢生成甲醛是一个很重要的化工过程，对于该过程的任何改进和提高都将带来巨大的经济效益。

The manufacture of formaldehyde from the oxidative dehydrogenation of methanol is a very important industrial process.

甲醇氧化脱氢生成甲醛是一个很重要的化工过程，对于该过程的任何改进和提高都将带来巨大的经济效益。

Then, gasification experiments of high ash melting point coal with dry pulverized coal feeding were carried out on the gasification test system, the flame images were observed to validate the feasibility of flameless gasification inside the gasifier, temperature distributing inner the gasifier and syngas components were measured under different / atom ratio and steam/coal ratio conditions.

进而，建立煤粉气化炉的物理和数学模型，运用概率密度函数方法对高灰熔点煤在基于无焰氧化的煤粉气化炉内的气化过程进行了模拟计算，参照小试的试验工况，验证了气化炉模型；分析了不同氧碳原子比、蒸汽煤比和气化压力对高灰熔点煤气化特性的影响，并可视化地研究在典型工况下高灰熔点煤在该气化炉中气化过程，为进一步炉型结构和气化工艺的优化设计提供依据。

Tin is not oxidized, involatile, and does not react with the common elements in steel, in steelmaking process, hence the yield of tin approxiates to 100%.

在炼钢过程中锡不被氧化、不易挥发、不与钢中的任何常存元素相互作用生成化合物，因此炼钢过程锡的回收率接近100%。

The Oxy units will monitor for residual 02 levels in the off gases of the oxidation reactor, a crucial measurement in the refining process that requires high levels of accuracy and reliability to ensure critical safety levels are maintained.

这四台分析仪将对氧化反应堆的废气残留02级进行监控，这也是提炼过程中的关键性测量，提炼过程需高度精确可靠，确保严格的安全等级。

Because thermal insulation was in oxygen-riched condition of afterburner and charred layer was porous, oxygenous gas in mixture would penetrate into charred layer and chemical reaction would take place in whole charred layer, which intensified the ablation process.

通过对烧蚀后试件的详细分析，认为绝热层烧蚀过程中燃气流中的氧化性组分会渗入炭化层内部，在炭化层内的孔隙中与材料发生放热的化学反应，大量消耗碳，加剧了烧蚀的过程。

Each unitis of different biotic characters and displays different features of seawater composition during the time. 2 The black unit including a biotic extinction was caused by oceanic anoxic event. Crisis that deepwater keeled foraminifera encountered represents a ferocious anoxia in deep marine environment . Biotic recovery in gray unit reflects gradually improved marine circumstance. What the biotic extinction at the C/T boundary in black unit reflects an environmental mutation, whereas the gradual biotic change characterize the recovery of marine dissolved oxygen environment in a stepwise process. The red unit is the result of oxic deposition and characterized by extremely abundance of foraminiferal faunas, which reflects a high-oxidized marine circumstance. 3 As the most ordinary biotic index in paleoceanography researches, foraminifera represent anexcellent environmental indicator in this paper.

三套岩层表现出不同的生物特征，并指示出当时海水的不同性质。2黑层段是大洋缺氧造成的结果，生物大量灭绝，深层水具旋脊有孔虫的所遭受的危机反映出当时海洋深层水体严重缺氧的特征；灰层段中生物的恢复反映出海洋环境自缺氧事件之后的逐步改善过程，与黑层段反映的C/T 界线处生物绝灭反映的环境突变不同，灰层段生物特征的渐变指示出当时海洋溶解氧环境的恢复也是一个逐步的过程；红层段属于富氧沉积的产物，特征是有孔虫生物的极度繁盛，反映的是一种高氧化性的海洋环境。3有孔虫作为古海洋研究中最常用的生物指标，在本文研究中显示了良好的环境指示性。

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。