查询词典 conversion speed

In range of 300℃～900℃, all the transition metal oxide catalysts could get high ammonia conversion, during the initial stages of the reaction, the SO〓 conversion is relatively low since the catalysts have not been sulfureted, but it increases gradually and attain constant with rising temperature and time continuance,〓 is better than other catalysts in reactivity and elemental sulfur selectivity; XRD indicates that, in the SO〓-SCR process, stable transition metal sulfide is generated which is very important to SO〓 reduction and transition metal sulfide probably is the active phase of catalyst, further the reduction of SO〓 by H〓 to H〓S is the limiting step of all process, then the activity is somewhat related to its lattice oxygen yet not so notable; XPS indicates that little sulfur on surface exists as S〓 in sulfate, showing that TiO〓 could restrain the generation of sulfate.

对于过渡金属氧化物催化剂的研究发现，在300℃～900℃范围内，不同的催化剂均可获得很高的NH〓转化率，反应初期由于催化剂还未硫化，所以SO〓的转化率较低，随着温度升高和反应时间的延续，SO〓的转化率逐渐升高并达到了稳定值；七种过渡金属氧化物中，以〓对于NH〓还原SO〓反应的活性和选择性最好；XRD结果表明在NH〓-SO〓反应后生成了稳定的硫化物相，硫化物对SO〓的还原过程具有重要作用，催化剂的活性相可能是过渡金属硫化物，而且在硫化物催化剂上进行的H〓还原SO〓生成H〓S的反应是整个过程的速率控制步骤，所以催化剂的活性与其自身的晶格氧的氧化还原能力有一定的联系，但关系不明显；XPS结果表明催化剂表面的硫大部分以过渡金属硫化物的形式存在，只生成少量的S〓，说明TiO〓催化剂能够较好的抑制硫酸盐的生成。

After killing the mice, weights of thymuses and spleens, and the macrophage phagocytosis were detected. using sheep red blood cells as antigen, the amounts of antibody-producing cells in mice were counted. through lymphocyte conversion test, lymphocyte conversion ratios of spleen lymphocytes stimulated by cona in mice were determined.

处死后检测小鼠胸腺重、脾重、巨噬细胞吞噬功能；采用绵羊红细胞作为抗原，检测小鼠抗体生成细胞功能；采用mtt法检测小鼠脾淋巴细胞对cona刺激的转化能力。

Comparing the two kinds of catalyst, although the high conversion could been gotten at the optimum reaction conditions respectively, to the same conversion, the reaction conditions for ammonium molybdate catalyst were higher than that for sodium tungstate catalyst, that means the catalytic activity of ammonium molybdate is higher than that of sodium tungstate.

两种催化剂相比，虽然在最佳工艺条件下，均可使反应达到较高的转化率，但达到相同转化率时钨酸钠催化剂所需的反应条件比钼酸铵催化剂高，所以总体来说，钼酸铵催化剂的反应活性高于钨酸钠催化剂。

This paper analyzes the using principle of color digital cameras and has research on the color space conversion of the color digital camera and then set up color space conversion mathematical model of it.

本文分析了彩色数码相机的使用原理，对彩色数码相机的色彩空间转换进行了研究，建立了彩色数码相机的色彩空间转换的数学模型。

Therefore, the use of solar energy, the want to get a certain degree of conversion power, it often requires a large area of a set of the collection and conversion equipment, high cost.

因此，在利用太阳能时，想要得到一定的转换功率，往往需要面积相当大的一套收集和转换设备，造价较高。

In fact, farmland conversion still is a necessary cost for economic development in present and in the future of china, which is reasonable, because the cycle of farmland conversion is consistent with economic growth cycle.

自改革开放以来，农地非农化为我国国民经济的全面发展提供了土地保障，对经济增长起着重要作用；但另一方面，农地非农化也存在明显的负作用，造成农地资源的大量损失，并引发了一系列社会、经济和生态问题。

In course of technological innovation the implication of conversion cost and conversion income is decided and so increased investment and income are measured accurately.

将企业技术创新作为一项投资项目，根据企业在技术创新的实际过程中发生的费用和收益，界定企业技术创新评价过程中涉及到的转换成本和转换收益的内涵，从而准确地度量技术创新评价中的增量投资和增量效益，并利用线性模拟方法，计算技术创新所产生的转换收益。

Small signal solution of aberrated second harmonic generation is deduced from three-dimension three wave coupling functions. The numerical work gives out lot of results of different aberrations. The effects of the fundamental wave's aberrations, which will change the conversion efficiency, distribution of intensity and phase in the frequency conversion, is analyzed. It shows that when walk-off and diffraction effects could be ignored approximately estimation of the phase distribution of second-harmonic wave could be done. The far field divergent angle and second moment radius of harmonic wave will vary with the aberration of fundamental wave, but the far field divergent angle will be obviously smaller than that of fundamental wave. The phase distribution of both fundamental and harmonic wave is measured using Hartmann-Shack wave front sensor in the experiment with 1064nm and 790nm lasers, respectively. Results are given.

首次从三维三波相互作用方程组推导得到了位相畸变光束倍频的小信号解；通过建立三维数值模型，编写相应仿真程序，首次得到了位相畸变光束倍频过程的大量计算结果，深入细致地研究了位相畸变光束经非线性光学频率变换后谐波的转换效率、光强分布、位相分布以及影响它们的各种因素；得出谐波的远场发散角和光斑二阶矩的变化规律会因为基波像差的不同而不同，但谐波的远场发散角明显地比相应基波的小的结论；得到了在走离效应和衍射效应等影响许多因素可以忽略的情况下，位相畸变传递到二次谐波的估算式；举例分析了KDP三倍频方案中，基波位相畸变对二次谐波和三次谐波的影响；实验工作中，用哈特曼-夏克传感器分别对1064nm倍频过程和790飞秒超短脉冲倍频过程中的基波和谐波的位相分布进行了测量，给出了相应结果。

This thesis positions counselors as guides in accelerating life conversion of university students, namely, organizers in students'moral education, managers and servants of students'affairs (study directors, directors of students'career planning, psychological consulters, directors of technological culture and association activities), promoters of social conversion of university students.

本文将辅导员定位为&促进大学生人生转变的引路人&，并通过以下角色具体完成：学生思想政治教育的组织者、学生事务的管理者与服务者(学习引导员、职业生涯规划指导者、心理咨询师、科技文化及社团活动的指导者)、大学生进行社会化转变的促进者。

Multi-conductor coupled-line Marchand baluns and broadband frequency doublers and mixers are presented in this dissertation. This research focuses on the development of miniature broadband frequency conversion circuits including frequency doublers, fundamental down-conversion mixer, and IQ-demodulator.

本论文主要是讨论多金属耦合线马逊平衡不平衡转换器及宽频的倍频器及混频器，研究方向是著重於发展包含倍频器、降频器及正交解调变器在内的微小化宽频频率转换电路。

A carrier gas such as nitrogen is directed through line 20 and valve 22 to connect with line 26 and mix with the gas sample.

如氮气之类的载体通过管线20和阀22引入，与管线26相通，与气体样品混合。

But for the most part, knaves and parasites had the command of his fortune

然而支配他的家产的大多是恶棍和寄生虫。