转化率

The reaction conversion and selectivity can be increased effectively by using multi-stage hydrogenation process and controlling H 2/ diolefin s molar ratio.

以该催化剂为基础开发的长链双烯多段选择性加氢工艺，在很宽的温度、压力、空速范围内都可达到很好的结果，严格控制氢气与双烯烃摩尔比，可有效提高反应的转化率和选择

Under the experimental conditions, the evaluation of catalytic activity on direct decomposition of NO show that the presence of Cu is necessary for improving activity at 600~800℃ among La0.9Ce0.1Fe(subscript 0.8-x)Co0.2YO3(Y=Cu, Zn, Ni) series, and in which L.a0.9Ce0.1Fe0.7Co0.2Cu0.1O3 has the highest activity, the conversion of NO decomposition maintains 80% and nearly 100% at 750℃. H2-TPR result proves that the higher activity is related to the mobility of lattice oxygen which is beneficial to the reproduction of active site for NO decomposition.

在实验条件下，对NO的活性测试结果表明，L0.9Ce0.1Fe(下标 0.8-x)Co0.2YO3(Y=Cu， Zn， Ni)系列催化剂在600~800℃范围内，掺杂Cu的复合氧化物具有较高的催化分解活性，其转化率始终保持在80%以上，反应温度为750℃时，几乎100%转化。H2-TPR结果证明，其催化分解活性高的原因是Cu的掺入使晶格氧活动性增强。

The key reason lies in the disjointedness between intellectual products and market demands.

造成低转化率的原因是多方面的，但关键在于技术与市场需求的相对脱节，科技人员缺乏对市场主动和充分的了解，和以市场需求为导向进行技术的开发、转让、应用的观念与思路。

At this stage, the solid pyrolyzed products of polysiloxane and polycarbosilane were amorphous silicon oxycarbide and nonstoichiometric silicon carbide containing excess carbon, respectively At higher temperature, structure of the amorphous pyrolyzed products started to rearrange and experienced a disorder →order transformation, even crystallized Cristobalite crystallized from SiO〓C〓, and β-SiC also crystallized from SiO〓C〓 provided carbon content of the starting polysiloxane was high enough, while β-SiC crystallized from SiC〓.

当热解温度达1000℃时，聚合物先驱体的无机化过程已基本完成，其陶瓷转化率值趋于稳定，此时聚硅氧烷的热解产物为非晶态的氧碳化硅，聚碳硅烷的热解产物则为含过量碳的非化学计量比的非晶态碳化硅；随着热解温度的升高，非晶态热解产物的结构逐步调整，发生无序→有序的相变，以至析晶。

High temperature is disadvantageous for the disproportionation of CO, and decreases the conversion significantly due to the limitation of thermodynamic equilibrium.

在实验条件下，因温度较高对CO的歧化不利，受热力学平衡的限制，CO虽能歧化但反应的转化率很低。

The results showed the disproportionation conversion of MPC could increase dramatically under vacuum condition and decrease the time of the reaction obviously at the same time.

实验结果表明，减压有利于提高MPC的转化率，并且可以缩短反应时间。

The effects of monomer concentration, radiation dose and dose rate on graft yield were discussed.

研究了辐射接枝反应中单体转化率、接枝率的变化规律。

The calculation results are in agreement with experimental data. The droplet size is the main factor to conversion.

得出了液滴直径大小是影响喷雾反应转化率的主要因素的结论。

In said method no additives such as disperser and emulgent are used, thus the obtained polymer is relativly pure, the inversion rate of polymerization is high and the post treatment is simple.

在这种聚合方法中，不使用分散剂、乳化剂之类的助剂，这样得到的聚合物比较纯净，而且聚合转化率高，后处理也简单。

And the emulsifier dosage is found to be the most important factor to the stability and monomer conversion.

并且得出乳化剂用量是影响体系稳定性及单体转化率的主要因素。

In the United States, chronic alcoholism and hepatitis C are the most common ones.

在美国，慢性酒精中毒，肝炎是最常见的。

If you have any questions, you can contact me anytime.

如果有任何问题，你可以随时联系我。