催化的

Finally,the factors that can effect the phase transfer catalysis reaction rate are discussed,it can get know more about affect of some factors,such as phase changes, migration rule of surfactant and property change of microinterface to the phase transfer catalysis reaction.

最后，就对相转移催化反应速率影响的诸因素进行详细的讨论，了解乳化液中相态变化、表面活性剂迁移规律、微界面性质变化等因素对相转移催化反应的影响。

A kinetic spectrophotometric method for the determination of copper is established based on its catalytic effect on the oxidation of phenol red by hydrogen peroxide in H2SO4 medium.

发现在硫酸介质中，痕量铜催化过氧化氢氧化酚红褪色的指示反应，研究了催化褪色反应的最佳条件和动力学参数，建立了测定痕量铜的新方法。

The effects of phthalocyanine cobalt with different substituted groups on electrocatalytic property were compared.

利用循环伏安法和线性扫描伏安法研究了修饰电极在酸性介质中对分子氧的电催化还原，比较了不同取代基的酞菁钴对电催化性质的影响。

The best compost of catalytic-oxidation is scalpped by perpendicular experiment,the best fugitive conditions arestudied in the best of the reaction between sulphuric acid- potassium bromide and sodium iodate .

研究了在3.0mol/L的硫酸介质中，溴化钾催化碘酸钠氧化偶氮胂M褪色反应的适宜条件与影响因素，建立了催化动力学褪色光度法测定痕量碘的新方法。

The results showed that the amorphous iron oxide has highly catalytic activity. The intermediate products are pyrocatechin, hydroquinone, benzoquinone and low-grade fatty acid. The mechanism of catalyst oxidation is assumed that the free radical OH attacks benzene cycle at the adjacent position and para-position of OH on phenol so that the benzene cycle is opened and low-grade fatty acid is produced and transformed into CO2 and H2O.

结果表明，非晶铁氧化物催化剂在催化氧化降解苯酚时具有较高的催化活性，苯酚降解的中间产物有：对苯二酚、邻苯二酚、苯醌和低级脂肪酸，其降解机理是羟基自由基攻击苯环上OH的部位或对位而使苯环开环，生成低级脂肪酸，并最终转化成二氧化碳和水，从而使苯酚得以降解。

By observing the photodegradation of rhodamine B,it is found that TiO 2 thin films have high photocatalytic activity.

通过考察罗丹明B的光催化分解过程，发现TiO2 薄膜对罗丹明B的光催化分解有很好的活性，可以完全分离罗丹明B。

It is based on the facts that in the presence of sulfuric acid and sodium dodecyl benzene sulfonate, vanadium activated by vitamin C can catalyze potassium bromate to oxidize safranine O, the oxidation products of safranine O can emit intense and stable fluorescence on nitrocellulose membrane.

基于在硫酸介质和十二烷基苯磺酸钠存在下，抗坏血酸活化钒催化溴酸钾氧化番红花红O发射强而稳定的荧光的特性，建立了ⅤC活化溴酸钾氧化番红花红O催化荧光法测定痕量钒的新方法。

Comparing the three processes, it has been found that the semicontinuous solution polymerization runs stably and the polymerization temperature can be well controlled.

为了获得稀土催化苯乙烯聚合合成UHMWPS的合适的聚合方式，分别进行了稀土催化苯乙烯间歇本体、溶液聚合及半连续溶液聚合的研究。

Catalytic activities and regioselectivities of sodium dihydrogen phosphate for nitrations of toluene were investigated by gas chromatography.

研究了磷酸二氢钠催化甲苯硝化反应的催化活性，通过气相色谱考察了催化剂用量、反应时间、硝化反应温度及催化剂的重复使用等因素对甲苯转化率和产物区域选择性的影响。

This promoting effect of the reducible supports has been attributed to the creation of new active sites at metal-support interface which originates from the migration of support suboxide species onto metal surface.

以上研究为了解Cu，γ-Al2O3，MnOx，TiO2共助催化作用的本质和开发性能优良的CO2加氢合成甲醇及二甲醚新的催化体系提供了实验依据和理论依据。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。