查询词典 catalyst

The influences of reaction parameters were discussed respectively, such as esterification time and temperature, catalyst dosage, ring-closing temperature, dosages of ECH, NaOH, etc.

重点研究了酯化阶段反应温度、反应时间及催化剂用量等影响因素；闭环阶段反应温度、碱的形态及ECH用量对闭环反应的影响。

The ionic liquids containing catalyst EDDA were recycled several times with no decreases in yields and reaction rates.

含有催化剂EDDA的离子液体经回收使用多次后，反应的速度和产率未见有明显改变。

By 20:00 the bell, a catalyst is still in bed, can not stomach Ede.

到了晚上八点钟了，我俩还在床上，肚子饿得不行了。

DTA and experiments of thermal explosion show that the Ti-B_4C reaction can be happened at a relative lower temperature by the ejective heat from Al-Ti reaction because of Al working as a catalyst in Al-Ti-B_4C system.

DTA和热爆试验表明，由于Al起催化剂作用，Al-Ti间反应放出的热量，使得Ti-B_4C间的反应在一个相对较低的温度条件下发生。

Electromagnetic stirring and oscillation bath were used to prepare Pd/ catalyst for the decomposition of formic acid,and the effects of activated carbon modification and preparation methods to catalytic activity were investigated.

采用磁力搅拌法和水浴振荡法制备应用于甲酸分解的Pd/活性炭催化剂，研究了活性炭载体改性和制备方法对催化剂分解甲酸性能的影响。

In case the electron transfer increases the outer electron cloud density of active metal, metal catalyst would be liable to be poisoned by sulfur.

如果这种电子转移的结果使活性金属的电子云密度增加，则金属型催化剂抗硫性就会下降。

The relative catalytic activity depends on the electronegativity of the catalyst involved.

催化剂的催化活性大小取决于加入催化剂的电负性大小。

The element of Fe on the surface of catalyst could exert the effect on the stability and adjusting the valence of Pd.

CO偶联反应过程中助剂铁起着价态调变和稳定的作用。

The carbon chain growth elementary reaction kinetics of higher alcohol synthesis on copper-cobalt catalyst have been studied in this paper.

5MPa、空速为 4 0 0 7h- 1的条件下，对铜钴催化剂上低碳醇合成的碳链增长基元反应动力学进行了深入的研究，根据Anderson -Sclmlz-Flory分布，求得了铜钴催化剂上 Cu/Co=0 。

It is both a source of repression and a catalyst for global movements of social justice and emancipation

它是抑压的本原同时是全球。。。。。的催化剂之一。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。